109797957 has 8 divisors (see below), whose sum is σ = 162663680. Its totient is φ = 73198620.

The previous prime is 109797953. The next prime is 109797971. The reversal of 109797957 is 759797901.

It is not a de Polignac number, because 109797957 - 2² = 109797953 is a prime.

It is a super-2 number, since 2×109797957² = 24111182722747698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109797953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2033269 + ... + 2033322.

It is an arithmetic number, because the mean of its divisors is an integer number (20332960).

Almost surely, 2^109797957 is an apocalyptic number.

It is an amenable number.

109797957 is a deficient number, since it is larger than the sum of its proper divisors (52865723).

109797957 is an equidigital number, since it uses as much as digits as its factorization.

109797957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066600 (or 4066594 counting only the distinct ones).

The product of its (nonzero) digits is 1250235, while the sum is 54.

The square root of 109797957 is about 10478.4520326239. The cubic root of 109797957 is about 478.8484505088.

The spelling of 109797957 in words is "one hundred nine million, seven hundred ninety-seven thousand, nine hundred fifty-seven".