84939565 has 16 divisors (see below), whose sum is σ = 108285120. Its totient is φ = 63740160.

The previous prime is 84939523. The next prime is 84939571. The reversal of 84939565 is 56593948.

It is a de Polignac number, because none of the positive numbers 2^k-84939565 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26626 + ... + 29644.

It is an arithmetic number, because the mean of its divisors is an integer number (6767820).

Almost surely, 2^84939565 is an apocalyptic number.

84939565 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84939565 is a deficient number, since it is larger than the sum of its proper divisors (23345555).

84939565 is a wasteful number, since it uses less digits than its factorization.

84939565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372.

The product of its digits is 1166400, while the sum is 49.

The square root of 84939565 is about 9216.2663264470. The cubic root of 84939565 is about 439.5787376463.

The spelling of 84939565 in words is "eighty-four million, nine hundred thirty-nine thousand, five hundred sixty-five".