87650717 has 16 divisors (see below), whose sum is σ = 111076224. Its totient is φ = 67176000.

The previous prime is 87650713. The next prime is 87650741. The reversal of 87650717 is 71705678.

It is a cyclic number.

It is not a de Polignac number, because 87650717 - 2² = 87650713 is a prime.

It is a super-2 number, since 2×87650717² = 15365296381228178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87650713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4634 + ... + 14027.

It is an arithmetic number, because the mean of its divisors is an integer number (6942264).

Almost surely, 2^87650717 is an apocalyptic number.

It is an amenable number.

87650717 is a deficient number, since it is larger than the sum of its proper divisors (23425507).

87650717 is a wasteful number, since it uses less digits than its factorization.

87650717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18740.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 87650717 is about 9362.1961632942. The cubic root of 87650717 is about 444.2067541389.

The spelling of 87650717 in words is "eighty-seven million, six hundred fifty thousand, seven hundred seventeen".