87250331 has 6 divisors (see below), whose sum is σ = 101495340. Its totient is φ = 74785956.

The previous prime is 87250327. The next prime is 87250333. The reversal of 87250331 is 13305278.

It is not a de Polignac number, because 87250331 - 2² = 87250327 is a prime.

It is a super-2 number, since 2×87250331² = 15225240519219122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87250294 and 87250303.

It is not an unprimeable number, because it can be changed into a prime (87250333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 890261 + ... + 890358.

It is an arithmetic number, because the mean of its divisors is an integer number (16915890).

Almost surely, 2^87250331 is an apocalyptic number.

87250331 is a deficient number, since it is larger than the sum of its proper divisors (14245009).

87250331 is a wasteful number, since it uses less digits than its factorization.

87250331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780633 (or 1780626 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 87250331 is about 9340.7885641417. The cubic root of 87250331 is about 443.5293469944.

The spelling of 87250331 in words is "eighty-seven million, two hundred fifty thousand, three hundred thirty-one".