87650957 has 4 divisors (see below), whose sum is σ = 88000416. Its totient is φ = 87301500.

The previous prime is 87650887. The next prime is 87650987. The reversal of 87650957 is 75905678.

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 87650957 - 2¹⁸ = 87388813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87650987) 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, 174353 + ... + 174854.

It is an arithmetic number, because the mean of its divisors is an integer number (22000104).

Almost surely, 2^87650957 is an apocalyptic number.

It is an amenable number.

87650957 is a deficient number, since it is larger than the sum of its proper divisors (349459).

87650957 is a wasteful number, since it uses less digits than its factorization.

87650957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349458.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 87650957 is about 9362.2089807908. The cubic root of 87650957 is about 444.2071595721.

The spelling of 87650957 in words is "eighty-seven million, six hundred fifty thousand, nine hundred fifty-seven".