87049312 has 48 divisors (see below), whose sum is σ = 196832160. Its totient is φ = 37122048.

The previous prime is 87049309. The next prime is 87049327. The reversal of 87049312 is 21394078.

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, 50448 + ... + 52144.

It is an arithmetic number, because the mean of its divisors is an integer number (4100670).

Almost surely, 2^87049312 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 87049312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98416080).

87049312 is an abundant number, since it is smaller than the sum of its proper divisors (109782848).

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

87049312 is a wasteful number, since it uses less digits than its factorization.

87049312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1935 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 87049312 is about 9330.0220792879. The cubic root of 87049312 is about 443.1884642959.

The spelling of 87049312 in words is "eighty-seven million, forty-nine thousand, three hundred twelve".