108995657 has 4 divisors (see below), whose sum is σ = 110014416. Its totient is φ = 107976900.

The previous prime is 108995641. The next prime is 108995681. The reversal of 108995657 is 756599801.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 756599801 = 131 ⋅5775571.

It is a cyclic number.

It is not a de Polignac number, because 108995657 - 2⁴ = 108995641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108995057) 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, 509219 + ... + 509432.

It is an arithmetic number, because the mean of its divisors is an integer number (27503604).

Almost surely, 2^108995657 is an apocalyptic number.

It is an amenable number.

108995657 is a deficient number, since it is larger than the sum of its proper divisors (1018759).

108995657 is a wasteful number, since it uses less digits than its factorization.

108995657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018758.

The product of its (nonzero) digits is 680400, while the sum is 50.

The square root of 108995657 is about 10440.0985148609. The cubic root of 108995657 is about 477.6792737115.

The spelling of 108995657 in words is "one hundred eight million, nine hundred ninety-five thousand, six hundred fifty-seven".