87044634 has 24 divisors (see below), whose sum is σ = 189308340. Its totient is φ = 28905408.

The previous prime is 87044563. The next prime is 87044663. The reversal of 87044634 is 43644078.

It can be written as a sum of positive squares in 2 ways, for example, as 81270225 + 5774409 = 9015^2 + 2403^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4147 + ... + 13830.

Almost surely, 2^87044634 is an apocalyptic number.

87044634 is an abundant number, since it is smaller than the sum of its proper divisors (102263706).

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

87044634 is a wasteful number, since it uses less digits than its factorization.

87044634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18254 (or 18251 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 87044634 is about 9329.7713798356. The cubic root of 87044634 is about 443.1805252220.

It can be divided in two parts, 87044 and 634, that added together give a palindrome (87678).

The spelling of 87044634 in words is "eighty-seven million, forty-four thousand, six hundred thirty-four".