87412244 has 12 divisors (see below), whose sum is σ = 155067444. Its totient is φ = 43107264.

The previous prime is 87412201. The next prime is 87412253. The reversal of 87412244 is 44221478.

It can be written as a sum of positive squares in 2 ways, for example, as 64963600 + 22448644 = 8060^2 + 4738^2 .

It is a super-2 number, since 2×87412244² = 15281800802231072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87412244.

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 3 ways as a sum of consecutive naturals, for example, 149387 + ... + 149970.

It is an arithmetic number, because the mean of its divisors is an integer number (12922287).

Almost surely, 2^87412244 is an apocalyptic number.

It is an amenable number.

87412244 is a deficient number, since it is larger than the sum of its proper divisors (67655200).

87412244 is a wasteful number, since it uses less digits than its factorization.

87412244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299434 (or 299432 counting only the distinct ones).

The product of its digits is 14336, while the sum is 32.

The square root of 87412244 is about 9349.4515347158. The cubic root of 87412244 is about 443.8035342674.

The spelling of 87412244 in words is "eighty-seven million, four hundred twelve thousand, two hundred forty-four".