87801072 has 40 divisors (see below), whose sum is σ = 231105744. Its totient is φ = 28713984.

The previous prime is 87801061. The next prime is 87801089. The reversal of 87801072 is 27010878.

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, 14713 + ... + 19800.

Almost surely, 2^87801072 is an apocalyptic number.

It is an amenable number.

87801072 is an abundant number, since it is smaller than the sum of its proper divisors (143304672).

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

87801072 is a wasteful number, since it uses less digits than its factorization.

87801072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34577 (or 34571 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 87801072 is about 9370.2226227556. Note that the first 3 decimals coincide. The cubic root of 87801072 is about 444.4606047087.

The spelling of 87801072 in words is "eighty-seven million, eight hundred one thousand, seventy-two".