87864667 has 8 divisors (see below), whose sum is σ = 97892352. Its totient is φ = 78177000.

The previous prime is 87864659. The next prime is 87864691. The reversal of 87864667 is 76646878.

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

It is not a de Polignac number, because 87864667 - 2³ = 87864659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87864617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84459 + ... + 85492.

It is an arithmetic number, because the mean of its divisors is an integer number (12236544).

Almost surely, 2^87864667 is an apocalyptic number.

87864667 is a deficient number, since it is larger than the sum of its proper divisors (10027685).

87864667 is a wasteful number, since it uses less digits than its factorization.

87864667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170009.

The product of its digits is 2709504, while the sum is 52.

The square root of 87864667 is about 9373.6154710976. The cubic root of 87864667 is about 444.5678875697.

The spelling of 87864667 in words is "eighty-seven million, eight hundred sixty-four thousand, six hundred sixty-seven".