108911597 has 4 divisors (see below), whose sum is σ = 108947520. Its totient is φ = 108875676.

The previous prime is 108911567. The next prime is 108911599. The reversal of 108911597 is 795119801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108911597 - 2²⁴ = 92134381 is a prime.

It is a super-2 number, since 2×108911597² = 23723471922180818, 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 (108911599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12947 + ... + 19632.

It is an arithmetic number, because the mean of its divisors is an integer number (27236880).

Almost surely, 2^108911597 is an apocalyptic number.

It is an amenable number.

108911597 is a deficient number, since it is larger than the sum of its proper divisors (35923).

108911597 is an equidigital number, since it uses as much as digits as its factorization.

108911597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35922.

The product of its (nonzero) digits is 22680, while the sum is 41.

The square root of 108911597 is about 10436.0719142789. The cubic root of 108911597 is about 477.5564429866.

The spelling of 108911597 in words is "one hundred eight million, nine hundred eleven thousand, five hundred ninety-seven".