1097506788 has 24 divisors (see below), whose sum is σ = 2926684992. Its totient is φ = 313573344.

The previous prime is 1097506771. The next prime is 1097506831. The reversal of 1097506788 is 8876057901.

It is a super-2 number, since 2×1097506788² = 2409042299412153888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1097506788.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6532695 + ... + 6532862.

It is an arithmetic number, because the mean of its divisors is an integer number (121945208).

Almost surely, 2^1097506788 is an apocalyptic number.

It is an amenable number.

1097506788 is an abundant number, since it is smaller than the sum of its proper divisors (1829178204).

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

1097506788 is a wasteful number, since it uses less digits than its factorization.

1097506788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13065571 (or 13065569 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 51.

The square root of 1097506788 is about 33128.6399962329. The cubic root of 1097506788 is about 1031.4996184573.

The spelling of 1097506788 in words is "one billion, ninety-seven million, five hundred six thousand, seven hundred eighty-eight".