86031771 has 32 divisors (see below), whose sum is σ = 135472128. Its totient is φ = 47537280.

The previous prime is 86031763. The next prime is 86031787. The reversal of 86031771 is 17713068.

It is not a de Polignac number, because 86031771 - 2³ = 86031763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86031721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204141 + ... + 204561.

It is an arithmetic number, because the mean of its divisors is an integer number (4233504).

Almost surely, 2^86031771 is an apocalyptic number.

86031771 is a deficient number, since it is larger than the sum of its proper divisors (49440357).

86031771 is a wasteful number, since it uses less digits than its factorization.

86031771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 86031771 is about 9275.3313148372. The cubic root of 86031771 is about 441.4548451147.

The spelling of 86031771 in words is "eighty-six million, thirty-one thousand, seven hundred seventy-one".