84408713 has 4 divisors (see below), whose sum is σ = 84777540. Its totient is φ = 84039888.

The previous prime is 84408679. The next prime is 84408733. The reversal of 84408713 is 31780448.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78198649 + 6210064 = 8843^2 + 2492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84408713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84408733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184070 + ... + 184527.

It is an arithmetic number, because the mean of its divisors is an integer number (21194385).

Almost surely, 2^84408713 is an apocalyptic number.

It is an amenable number.

84408713 is a deficient number, since it is larger than the sum of its proper divisors (368827).

84408713 is a wasteful number, since it uses less digits than its factorization.

84408713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368826.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 84408713 is about 9187.4214554466. The cubic root of 84408713 is about 438.6610691963.

The spelling of 84408713 in words is "eighty-four million, four hundred eight thousand, seven hundred thirteen".