87044425 has 12 divisors (see below), whose sum is σ = 116238220. Its totient is φ = 64278720.

The previous prime is 87044413. The next prime is 87044429. The reversal of 87044425 is 52444078.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 10936249 + 76108176 = 3307^2 + 8724^2 .

It is not a de Polignac number, because 87044425 - 2¹⁵ = 87011657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87044429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133590 + ... + 134239.

Almost surely, 2^87044425 is an apocalyptic number.

It is an amenable number.

87044425 is a deficient number, since it is larger than the sum of its proper divisors (29193795).

87044425 is a wasteful number, since it uses less digits than its factorization.

87044425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267852 (or 267847 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 87044425 is about 9329.7601791257. The cubic root of 87044425 is about 443.1801705196.

The spelling of 87044425 in words is "eighty-seven million, forty-four thousand, four hundred twenty-five".