87764394 has 8 divisors (see below), whose sum is σ = 175528800. Its totient is φ = 29254796.

The previous prime is 87764359. The next prime is 87764399. The reversal of 87764394 is 49346778.

It is a happy number.

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

87764394 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (87764399) 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, 7313694 + ... + 7313705.

It is an arithmetic number, because the mean of its divisors is an integer number (21941100).

Almost surely, 2^87764394 is an apocalyptic number.

87764394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87764394 is a wasteful number, since it uses less digits than its factorization.

87764394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14627404.

The product of its digits is 1016064, while the sum is 48.

The square root of 87764394 is about 9368.2652609755. The cubic root of 87764394 is about 444.3987064645.

The spelling of 87764394 in words is "eighty-seven million, seven hundred sixty-four thousand, three hundred ninety-four".