2797998 has 48 divisors (see below), whose sum is σ = 6741504. Its totient is φ = 771120.

The previous prime is 2797961. The next prime is 2797999. The reversal of 2797998 is 8997972.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2797998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2797999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8961 + ... + 9267.

It is an arithmetic number, because the mean of its divisors is an integer number (140448).

2^2797998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2797998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3370752).

2797998 is an abundant number, since it is smaller than the sum of its proper divisors (3943506).

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

2797998 is a wasteful number, since it uses less digits than its factorization.

2797998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 350 counting only the distinct ones).

The product of its digits is 571536, while the sum is 51.

The square root of 2797998 is about 1672.7217341806. The cubic root of 2797998 is about 140.9123745080.

The spelling of 2797998 in words is "two million, seven hundred ninety-seven thousand, nine hundred ninety-eight".