2097997902 has 256 divisors, whose sum is σ = 6435072000. Its totient is φ = 488954880.

The previous prime is 2097997901. The next prime is 2097997903.

2097997902 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (2097997901) and next prime (2097997903).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2097997901) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1999474 + ... + 2000522.

It is an arithmetic number, because the mean of its divisors is an integer number (25137000).

Almost surely, 2^2097997902 is an apocalyptic number.

2097997902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2097997902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3217536000).

2097997902 is an abundant number, since it is smaller than the sum of its proper divisors (4337074098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2097997902 is a wasteful number, since it uses less digits than its factorization.

2097997902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 1285956, while the sum is 54.

The square root of 2097997902 is about 45803.9070604244. The cubic root of 2097997902 is about 1280.1720760685.

It can be divided in two parts, 2097 and 997902, that added together give a palindrome (999999).

The spelling of 2097997902 in words is "two billion, ninety-seven million, nine hundred ninety-seven thousand, nine hundred two".