87794512 has 20 divisors (see below), whose sum is σ = 183187060. Its totient is φ = 40520448.

The previous prime is 87794507. The next prime is 87794533. The reversal of 87794512 is 21549778.

It can be written as a sum of positive squares in 2 ways, for example, as 8156736 + 79637776 = 2856^2 + 8924^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210837 + ... + 211252.

It is an arithmetic number, because the mean of its divisors is an integer number (9159353).

Almost surely, 2^87794512 is an apocalyptic number.

It is an amenable number.

87794512 is an abundant number, since it is smaller than the sum of its proper divisors (95392548).

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

87794512 is a wasteful number, since it uses less digits than its factorization.

87794512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422110 (or 422104 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 87794512 is about 9369.8725711719. The cubic root of 87794512 is about 444.4495352380.

The spelling of 87794512 in words is "eighty-seven million, seven hundred ninety-four thousand, five hundred twelve".