87579612 has 72 divisors (see below), whose sum is σ = 228114432. Its totient is φ = 28317600.

The previous prime is 87579599. The next prime is 87579697. The reversal of 87579612 is 21697578.

87579612 = T₄₃ + T₄₄ + ... + T₈₀₆.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323037 + ... + 323307.

It is an arithmetic number, because the mean of its divisors is an integer number (3168256).

Almost surely, 2^87579612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87579612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114057216).

87579612 is an abundant number, since it is smaller than the sum of its proper divisors (140534820).

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

87579612 is a wasteful number, since it uses less digits than its factorization.

87579612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 514 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 87579612 is about 9358.3979398185. The cubic root of 87579612 is about 444.0866035108.

The spelling of 87579612 in words is "eighty-seven million, five hundred seventy-nine thousand, six hundred twelve".