87012916 has 12 divisors (see below), whose sum is σ = 152367460. Its totient is φ = 43479360.

The previous prime is 87012911. The next prime is 87012917. The reversal of 87012916 is 61921078.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40908816 + 46104100 = 6396^2 + 6790^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87012911) 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, 1600 + ... + 13288.

Almost surely, 2^87012916 is an apocalyptic number.

It is an amenable number.

87012916 is a deficient number, since it is larger than the sum of its proper divisors (65354544).

87012916 is a wasteful number, since it uses less digits than its factorization.

87012916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13554 (or 13552 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 87012916 is about 9328.0713976684. The cubic root of 87012916 is about 443.1266888280.

The spelling of 87012916 in words is "eighty-seven million, twelve thousand, nine hundred sixteen".