87002912 has 12 divisors (see below), whose sum is σ = 171287046. Its totient is φ = 43501440.

The previous prime is 87002893. The next prime is 87002921. The reversal of 87002912 is 21920078.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 52475536 + 34527376 = 7244^2 + 5876^2 .

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 as a sum of consecutive naturals, namely, 1359389 + ... + 1359452.

Almost surely, 2^87002912 is an apocalyptic number.

It is an amenable number.

87002912 is a deficient number, since it is larger than the sum of its proper divisors (84284134).

87002912 is a wasteful number, since it uses less digits than its factorization.

87002912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718851 (or 2718843 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 87002912 is about 9327.5351513677. The cubic root of 87002912 is about 443.1097058731.

The spelling of 87002912 in words is "eighty-seven million, two thousand, nine hundred twelve".