86706739 has 16 divisors (see below), whose sum is σ = 100672000. Its totient is φ = 73146240.

The previous prime is 86706733. The next prime is 86706751. The reversal of 86706739 is 93760768.

It is a cyclic number.

It is not a de Polignac number, because 86706739 - 2⁵ = 86706707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86706733) 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, 173512 + ... + 174010.

It is an arithmetic number, because the mean of its divisors is an integer number (6292000).

Almost surely, 2^86706739 is an apocalyptic number.

86706739 is a deficient number, since it is larger than the sum of its proper divisors (13965261).

86706739 is a wasteful number, since it uses less digits than its factorization.

86706739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 86706739 is about 9311.6453433322. The cubic root of 86706739 is about 442.6063268169.

The spelling of 86706739 in words is "eighty-six million, seven hundred six thousand, seven hundred thirty-nine".