87617901 has 16 divisors (see below), whose sum is σ = 134402048. Its totient is φ = 49734000.

The previous prime is 87617897. The next prime is 87617921. The reversal of 87617901 is 10971678.

It is not a de Polignac number, because 87617901 - 2² = 87617897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87617901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87617921) 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, 10645 + ... + 16986.

It is an arithmetic number, because the mean of its divisors is an integer number (8400128).

Almost surely, 2^87617901 is an apocalyptic number.

It is an amenable number.

87617901 is a deficient number, since it is larger than the sum of its proper divisors (46784147).

87617901 is a wasteful number, since it uses less digits than its factorization.

87617901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27792.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 87617901 is about 9360.4434189840. The cubic root of 87617901 is about 444.1513109400.

The spelling of 87617901 in words is "eighty-seven million, six hundred seventeen thousand, nine hundred one".