84739665 has 8 divisors (see below), whose sum is σ = 135583488. Its totient is φ = 45194480.

The previous prime is 84739663. The next prime is 84739667. The reversal of 84739665 is 56693748.

It is an interprime number because it is at equal distance from previous prime (84739663) and next prime (84739667).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84739665 - 2¹ = 84739663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84739663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2824641 + ... + 2824670.

It is an arithmetic number, because the mean of its divisors is an integer number (16947936).

Almost surely, 2^84739665 is an apocalyptic number.

It is an amenable number.

84739665 is a deficient number, since it is larger than the sum of its proper divisors (50843823).

84739665 is a wasteful number, since it uses less digits than its factorization.

84739665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5649319.

The product of its digits is 1088640, while the sum is 48.

The square root of 84739665 is about 9205.4149824981. The cubic root of 84739665 is about 439.2336263367.

The spelling of 84739665 in words is "eighty-four million, seven hundred thirty-nine thousand, six hundred sixty-five".