87685001 has 4 divisors (see below), whose sum is σ = 87739392. Its totient is φ = 87630612.

The previous prime is 87684983. The next prime is 87685007. The reversal of 87685001 is 10058678.

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 87685001 - 2²² = 83490697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87685007) 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, 24701 + ... + 28026.

It is an arithmetic number, because the mean of its divisors is an integer number (21934848).

Almost surely, 2^87685001 is an apocalyptic number.

It is an amenable number.

87685001 is a deficient number, since it is larger than the sum of its proper divisors (54391).

87685001 is a wasteful number, since it uses less digits than its factorization.

87685001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54390.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 87685001 is about 9364.0269649334. The cubic root of 87685001 is about 444.2646627703.

The spelling of 87685001 in words is "eighty-seven million, six hundred eighty-five thousand, one".