87513622 has 16 divisors (see below), whose sum is σ = 150336000. Its totient is φ = 37427688.

The previous prime is 87513583. The next prime is 87513659. The reversal of 87513622 is 22631578.

It is a happy number.

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, 723 + ... + 13249.

It is an arithmetic number, because the mean of its divisors is an integer number (9396000).

Almost surely, 2^87513622 is an apocalyptic number.

87513622 is a deficient number, since it is larger than the sum of its proper divisors (62822378).

87513622 is a wasteful number, since it uses less digits than its factorization.

87513622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13035.

The product of its digits is 20160, while the sum is 34.

The square root of 87513622 is about 9354.8715651258. The cubic root of 87513622 is about 443.9750378250.

The spelling of 87513622 in words is "eighty-seven million, five hundred thirteen thousand, six hundred twenty-two".