87091250 has 60 divisors (see below), whose sum is σ = 173180502. Its totient is φ = 32832000.

The previous prime is 87091201. The next prime is 87091253. The reversal of 87091250 is 5219078.

It can be written as a sum of positive squares in 5 ways, for example, as 61009 + 87030241 = 247^2 + 9329^2 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87091253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 451154 + ... + 451346.

Almost surely, 2^87091250 is an apocalyptic number.

87091250 is a deficient number, since it is larger than the sum of its proper divisors (86089252).

87091250 is a wasteful number, since it uses less digits than its factorization.

87091250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 87091250 is about 9332.2692845845. The cubic root of 87091250 is about 443.2596249342.

The spelling of 87091250 in words is "eighty-seven million, ninety-one thousand, two hundred fifty".