87867894 has 16 divisors (see below), whose sum is σ = 184985280. Its totient is φ = 27747720.

The previous prime is 87867893. The next prime is 87867943. The reversal of 87867894 is 49876878.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87867893) 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, 385272 + ... + 385499.

It is an arithmetic number, because the mean of its divisors is an integer number (11561580).

Almost surely, 2^87867894 is an apocalyptic number.

87867894 is an abundant number, since it is smaller than the sum of its proper divisors (97117386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87867894 is a wasteful number, since it uses less digits than its factorization.

87867894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770795.

The product of its digits is 5419008, while the sum is 57.

The square root of 87867894 is about 9373.7876016048. The cubic root of 87867894 is about 444.5733300418.

The spelling of 87867894 in words is "eighty-seven million, eight hundred sixty-seven thousand, eight hundred ninety-four".