86371971 has 16 divisors (see below), whose sum is σ = 132172800. Its totient is φ = 49146048.

The previous prime is 86371937. The next prime is 86371973. The reversal of 86371971 is 17917368.

It is not a de Polignac number, because 86371971 - 2¹³ = 86363779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86371973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3586 + ... + 13623.

It is an arithmetic number, because the mean of its divisors is an integer number (8260800).

Almost surely, 2^86371971 is an apocalyptic number.

86371971 is a deficient number, since it is larger than the sum of its proper divisors (45800829).

86371971 is a wasteful number, since it uses less digits than its factorization.

86371971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17458.

The product of its digits is 63504, while the sum is 42.

The square root of 86371971 is about 9293.6521884564. The cubic root of 86371971 is about 442.0359692410.

The spelling of 86371971 in words is "eighty-six million, three hundred seventy-one thousand, nine hundred seventy-one".