86756939 has 2 divisors, whose sum is σ = 86756940. Its totient is φ = 86756938.

The previous prime is 86756921. The next prime is 86756981. The reversal of 86756939 is 93965768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86756939 - 2¹⁶ = 86691403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86756039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43378469 + 43378470.

It is an arithmetic number, because the mean of its divisors is an integer number (43378470).

Almost surely, 2^86756939 is an apocalyptic number.

86756939 is a deficient number, since it is larger than the sum of its proper divisors (1).

86756939 is an equidigital number, since it uses as much as digits as its factorization.

86756939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 53.

The square root of 86756939 is about 9314.3405026872. The cubic root of 86756939 is about 442.6917279106.

The spelling of 86756939 in words is "eighty-six million, seven hundred fifty-six thousand, nine hundred thirty-nine".