107989657 has 4 divisors (see below), whose sum is σ = 108223360. Its totient is φ = 107755956.

The previous prime is 107989639. The next prime is 107989697. The reversal of 107989657 is 756989701.

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.

It is a cyclic number.

It is not a de Polignac number, because 107989657 - 2¹⁵ = 107956889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107989697) 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, 116157 + ... + 117082.

It is an arithmetic number, because the mean of its divisors is an integer number (27055840).

Almost surely, 2^107989657 is an apocalyptic number.

It is an amenable number.

107989657 is a deficient number, since it is larger than the sum of its proper divisors (233703).

107989657 is an equidigital number, since it uses as much as digits as its factorization.

107989657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233702.

The product of its (nonzero) digits is 952560, while the sum is 52.

The square root of 107989657 is about 10391.8072056789. The cubic root of 107989657 is about 476.2051128004.

The spelling of 107989657 in words is "one hundred seven million, nine hundred eighty-nine thousand, six hundred fifty-seven".