1097818892 has 12 divisors (see below), whose sum is σ = 1957432176. Its totient is φ = 538552560.

The previous prime is 1097818873. The next prime is 1097818921. The reversal of 1097818892 is 2988187901.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2588984 + ... + 2589407.

It is an arithmetic number, because the mean of its divisors is an integer number (163119348).

Almost surely, 2^1097818892 is an apocalyptic number.

It is an amenable number.

1097818892 is a deficient number, since it is larger than the sum of its proper divisors (859613284).

1097818892 is a wasteful number, since it uses less digits than its factorization.

1097818892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5178448 (or 5178446 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 53.

The square root of 1097818892 is about 33133.3501475477. The cubic root of 1097818892 is about 1031.5973869171.

The spelling of 1097818892 in words is "one billion, ninety-seven million, eight hundred eighteen thousand, eight hundred ninety-two".