1099897902 has 24 divisors (see below), whose sum is σ = 2385227520. Its totient is φ = 366307200.

The previous prime is 1099897879. The next prime is 1099897907. The reversal of 1099897902 is 2097989901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099897907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5827 + ... + 47262.

It is an arithmetic number, because the mean of its divisors is an integer number (99384480).

Almost surely, 2^1099897902 is an apocalyptic number.

1099897902 is an abundant number, since it is smaller than the sum of its proper divisors (1285329618).

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

1099897902 is a wasteful number, since it uses less digits than its factorization.

1099897902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54248 (or 54245 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 54.

The square root of 1099897902 is about 33164.7086825740. The cubic root of 1099897902 is about 1032.2481769727.

It can be divided in two parts, 10998 and 97902, that added together give a square (108900 = 330²).

The spelling of 1099897902 in words is "one billion, ninety-nine million, eight hundred ninety-seven thousand, nine hundred two".