87042404 has 12 divisors (see below), whose sum is σ = 153237504. Its totient is φ = 43260264.

The previous prime is 87042391. The next prime is 87042407. The reversal of 87042404 is 40424078.

It is not an unprimeable number, because it can be changed into a prime (87042407) 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, 64484 + ... + 65819.

It is an arithmetic number, because the mean of its divisors is an integer number (12769792).

Almost surely, 2^87042404 is an apocalyptic number.

It is an amenable number.

87042404 is a deficient number, since it is larger than the sum of its proper divisors (66195100).

87042404 is a wasteful number, since it uses less digits than its factorization.

87042404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130474 (or 130472 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 87042404 is about 9329.6518691750. The cubic root of 87042404 is about 443.1767405697.

The spelling of 87042404 in words is "eighty-seven million, forty-two thousand, four hundred four".