86740665 has 24 divisors (see below), whose sum is σ = 152552064. Its totient is φ = 42055200.

The previous prime is 86740663. The next prime is 86740669. The reversal of 86740665 is 56604768.

It is a happy number.

It is not a de Polignac number, because 86740665 - 2¹ = 86740663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86740663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22081 + ... + 25710.

It is an arithmetic number, because the mean of its divisors is an integer number (6356336).

Almost surely, 2^86740665 is an apocalyptic number.

It is an amenable number.

86740665 is a deficient number, since it is larger than the sum of its proper divisors (65811399).

86740665 is a wasteful number, since it uses less digits than its factorization.

86740665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47821 (or 47810 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 86740665 is about 9313.4668625598. The cubic root of 86740665 is about 442.6640459147.

The spelling of 86740665 in words is "eighty-six million, seven hundred forty thousand, six hundred sixty-five".