87385311 has 40 divisors (see below), whose sum is σ = 145169024. Its totient is φ = 52021440.

The previous prime is 87385289. The next prime is 87385327. The reversal of 87385311 is 11358378.

It is not a de Polignac number, because 87385311 - 2⁶ = 87385247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87385511) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 31305 + ... + 33981.

Almost surely, 2^87385311 is an apocalyptic number.

87385311 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

87385311 is a deficient number, since it is larger than the sum of its proper divisors (57783713).

87385311 is a wasteful number, since it uses less digits than its factorization.

87385311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733 (or 2724 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 87385311 is about 9348.0110718805. The cubic root of 87385311 is about 443.7579487831.

The spelling of 87385311 in words is "eighty-seven million, three hundred eighty-five thousand, three hundred eleven".