87725331 has 12 divisors (see below), whose sum is σ = 126830080. Its totient is φ = 58430160.

The previous prime is 87725327. The next prime is 87725333. The reversal of 87725331 is 13352778.

It is not a de Polignac number, because 87725331 - 2² = 87725327 is a prime.

It is a super-2 number, since 2×87725331² = 15391467398119122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87725333) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7701 + ... + 15321.

Almost surely, 2^87725331 is an apocalyptic number.

87725331 is a deficient number, since it is larger than the sum of its proper divisors (39104749).

87725331 is a wasteful number, since it uses less digits than its factorization.

87725331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8906 (or 8903 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 87725331 is about 9366.1801712331. The cubic root of 87725331 is about 444.3327642981.

The spelling of 87725331 in words is "eighty-seven million, seven hundred twenty-five thousand, three hundred thirty-one".