87005331 has 36 divisors (see below), whose sum is σ = 148016232. Its totient is φ = 49097664.

The previous prime is 87005311. The next prime is 87005341. The reversal of 87005331 is 13350078.

It is not a de Polignac number, because 87005331 - 2⁵ = 87005299 is a prime.

It is a super-2 number, since 2×87005331² = 15139855244839122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87005295 and 87005304.

It is not an unprimeable number, because it can be changed into a prime (87005311) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35415 + ... + 37791.

It is an arithmetic number, because the mean of its divisors is an integer number (4111562).

Almost surely, 2^87005331 is an apocalyptic number.

87005331 is a deficient number, since it is larger than the sum of its proper divisors (61010901).

87005331 is a wasteful number, since it uses less digits than its factorization.

87005331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480 (or 2470 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 87005331 is about 9327.6648203074. The cubic root of 87005331 is about 443.1138125266.

The spelling of 87005331 in words is "eighty-seven million, five thousand, three hundred thirty-one".