86957905 has 8 divisors (see below), whose sum is σ = 104462784. Its totient is φ = 69490800.

The previous prime is 86957903. The next prime is 86957929. The reversal of 86957905 is 50975968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86957905 - 2¹ = 86957903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86957903) 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, 4101 + ... + 13810.

It is an arithmetic number, because the mean of its divisors is an integer number (13057848).

Almost surely, 2^86957905 is an apocalyptic number.

It is an amenable number.

86957905 is a deficient number, since it is larger than the sum of its proper divisors (17504879).

86957905 is a wasteful number, since it uses less digits than its factorization.

86957905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18887.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 86957905 is about 9325.1222512094. The cubic root of 86957905 is about 443.0332851421.

The spelling of 86957905 in words is "eighty-six million, nine hundred fifty-seven thousand, nine hundred five".