107731657 has 4 divisors (see below), whose sum is σ = 117525456. Its totient is φ = 97937860.

The previous prime is 107731651. The next prime is 107731693. The reversal of 107731657 is 756137701.

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 107731657 - 2¹⁹ = 107207369 is a prime.

It is a super-2 number, since 2×107731657² = 23212219839931298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107731651) 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, 4896883 + ... + 4896904.

It is an arithmetic number, because the mean of its divisors is an integer number (29381364).

Almost surely, 2^107731657 is an apocalyptic number.

It is an amenable number.

107731657 is a deficient number, since it is larger than the sum of its proper divisors (9793799).

107731657 is an equidigital number, since it uses as much as digits as its factorization.

107731657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9793798.

The product of its (nonzero) digits is 30870, while the sum is 37.

The square root of 107731657 is about 10379.3861571868. The cubic root of 107731657 is about 475.8255736987.

The spelling of 107731657 in words is "one hundred seven million, seven hundred thirty-one thousand, six hundred fifty-seven".