87869015 has 32 divisors (see below), whose sum is σ = 120523200. Its totient is φ = 61326720.

The previous prime is 87869003. The next prime is 87869017. The reversal of 87869015 is 51096878.

It is a happy number.

It is not a de Polignac number, because 87869015 - 2⁴ = 87868999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87869017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208505 + ... + 208925.

It is an arithmetic number, because the mean of its divisors is an integer number (3766350).

Almost surely, 2^87869015 is an apocalyptic number.

87869015 is a deficient number, since it is larger than the sum of its proper divisors (32654185).

87869015 is a wasteful number, since it uses less digits than its factorization.

87869015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 87869015 is about 9373.8473958135. The cubic root of 87869015 is about 444.5752206246.

The spelling of 87869015 in words is "eighty-seven million, eight hundred sixty-nine thousand, fifteen".