87071244 has 24 divisors (see below), whose sum is σ = 218794800. Its totient is φ = 26791104.

The previous prime is 87071227. The next prime is 87071251. The reversal of 87071244 is 44217078.

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, 278919 + ... + 279230.

It is an arithmetic number, because the mean of its divisors is an integer number (9116450).

Almost surely, 2^87071244 is an apocalyptic number.

It is an amenable number.

87071244 is an abundant number, since it is smaller than the sum of its proper divisors (131723556).

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

87071244 is a wasteful number, since it uses less digits than its factorization.

87071244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558169 (or 558167 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 87071244 is about 9331.1973508227. The cubic root of 87071244 is about 443.2256814892.

The spelling of 87071244 in words is "eighty-seven million, seventy-one thousand, two hundred forty-four".