86957647 has 8 divisors (see below), whose sum is σ = 100345856. Its totient is φ = 73810872.

The previous prime is 86957639. The next prime is 86957671. The reversal of 86957647 is 74675968.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 86957647 - 2³ = 86957639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86957594 and 86957603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86957677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59583 + ... + 61024.

It is an arithmetic number, because the mean of its divisors is an integer number (12543232).

Almost surely, 2^86957647 is an apocalyptic number.

86957647 is a deficient number, since it is larger than the sum of its proper divisors (13388209).

86957647 is a wasteful number, since it uses less digits than its factorization.

86957647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120717.

The product of its digits is 2540160, while the sum is 52.

The square root of 86957647 is about 9325.1084176003. The cubic root of 86957647 is about 443.0328469887.

The spelling of 86957647 in words is "eighty-six million, nine hundred fifty-seven thousand, six hundred forty-seven".