87404718 has 16 divisors (see below), whose sum is σ = 185092560. Its totient is φ = 27421056.

The previous prime is 87404687. The next prime is 87404749. The reversal of 87404718 is 81740478.

It is an interprime number because it is at equal distance from previous prime (87404687) and next prime (87404749).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428353 + ... + 428556.

It is an arithmetic number, because the mean of its divisors is an integer number (11568285).

Almost surely, 2^87404718 is an apocalyptic number.

87404718 is an abundant number, since it is smaller than the sum of its proper divisors (97687842).

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

87404718 is a wasteful number, since it uses less digits than its factorization.

87404718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856931.

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 87404718 is about 9349.0490425497. The cubic root of 87404718 is about 443.7907970691.

The spelling of 87404718 in words is "eighty-seven million, four hundred four thousand, seven hundred eighteen".