87149622 has 32 divisors (see below), whose sum is σ = 207862272. Its totient is φ = 23817024.

The previous prime is 87149617. The next prime is 87149651. The reversal of 87149622 is 22694178.

It is a super-2 number, since 2×87149622² = 15190113229485768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44143 + ... + 46074.

It is an arithmetic number, because the mean of its divisors is an integer number (6495696).

Almost surely, 2^87149622 is an apocalyptic number.

87149622 is an abundant number, since it is smaller than the sum of its proper divisors (120712650).

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

87149622 is a wasteful number, since it uses less digits than its factorization.

87149622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90252.

The product of its digits is 48384, while the sum is 39.

The square root of 87149622 is about 9335.3961887003. The cubic root of 87149622 is about 443.3586328613.

It can be divided in two parts, 8714 and 9622, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 87149622 in words is "eighty-seven million, one hundred forty-nine thousand, six hundred twenty-two".