86713387 has 2 divisors, whose sum is σ = 86713388. Its totient is φ = 86713386.

The previous prime is 86713349. The next prime is 86713399. The reversal of 86713387 is 78331768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86713387 - 2⁷ = 86713259 is a prime.

It is a super-2 number, since 2×86713387² = 15038422970023538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86713087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43356693 + 43356694.

It is an arithmetic number, because the mean of its divisors is an integer number (43356694).

Almost surely, 2^86713387 is an apocalyptic number.

86713387 is a deficient number, since it is larger than the sum of its proper divisors (1).

86713387 is an equidigital number, since it uses as much as digits as its factorization.

86713387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The square root of 86713387 is about 9312.0023088485. The cubic root of 86713387 is about 442.6176384008.

Subtracting from 86713387 its sum of digits (43), we obtain a square (86713344 = 9312²).

The spelling of 86713387 in words is "eighty-six million, seven hundred thirteen thousand, three hundred eighty-seven".