1097874972 has 36 divisors (see below), whose sum is σ = 2877971096. Its totient is φ = 365958000.

The previous prime is 1097874971. The next prime is 1097874979. The reversal of 1097874972 is 2794787901.

It is a tau number, because it is divible by the number of its divisors (36).

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 (1097874971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 563779 + ... + 565722.

Almost surely, 2^1097874972 is an apocalyptic number.

1097874972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1097874972 is an abundant number, since it is smaller than the sum of its proper divisors (1780096124).

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

1097874972 is a wasteful number, since it uses less digits than its factorization.

1097874972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129520 (or 1129506 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The square root of 1097874972 is about 33134.1964139769. The cubic root of 1097874972 is about 1031.6149523513.

The spelling of 1097874972 in words is "one billion, ninety-seven million, eight hundred seventy-four thousand, nine hundred seventy-two".