87904071 has 12 divisors (see below), whose sum is σ = 127613200. Its totient is φ = 58307040.

The previous prime is 87904057. The next prime is 87904073. The reversal of 87904071 is 17040978.

It is not a de Polignac number, because 87904071 - 2⁵ = 87904039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87904073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22750 + ... + 26331.

Almost surely, 2^87904071 is an apocalyptic number.

87904071 is a deficient number, since it is larger than the sum of its proper divisors (39709129).

87904071 is a wasteful number, since it uses less digits than its factorization.

87904071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49286 (or 49283 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 87904071 is about 9375.7170925748. The cubic root of 87904071 is about 444.6343349658.

The spelling of 87904071 in words is "eighty-seven million, nine hundred four thousand, seventy-one".