85587331 has 4 divisors (see below), whose sum is σ = 86990464. Its totient is φ = 84184200.

The previous prime is 85587319. The next prime is 85587349. The reversal of 85587331 is 13378558.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85587331 - 2⁹ = 85586819 is a prime.

It is a super-2 number, since 2×85587331² = 14650382455407122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85587371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701475 + ... + 701596.

It is an arithmetic number, because the mean of its divisors is an integer number (21747616).

Almost surely, 2^85587331 is an apocalyptic number.

85587331 is a deficient number, since it is larger than the sum of its proper divisors (1403133).

85587331 is a wasteful number, since it uses less digits than its factorization.

85587331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403132.

The product of its digits is 100800, while the sum is 40.

The square root of 85587331 is about 9251.3421188496. The cubic root of 85587331 is about 440.6933472839.

The spelling of 85587331 in words is "eighty-five million, five hundred eighty-seven thousand, three hundred thirty-one".