84231565 has 16 divisors (see below), whose sum is σ = 110496960. Its totient is φ = 61131520.

The previous prime is 84231547. The next prime is 84231571. The reversal of 84231565 is 56513248.

It is not a de Polignac number, because 84231565 - 2⁵ = 84231533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84231565.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30981 + ... + 33589.

It is an arithmetic number, because the mean of its divisors is an integer number (6906060).

Almost surely, 2^84231565 is an apocalyptic number.

It is an amenable number.

84231565 is a deficient number, since it is larger than the sum of its proper divisors (26265395).

84231565 is a wasteful number, since it uses less digits than its factorization.

84231565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212.

The product of its digits is 28800, while the sum is 34.

The square root of 84231565 is about 9177.7756019637. The cubic root of 84231565 is about 438.3539825876.

The spelling of 84231565 in words is "eighty-four million, two hundred thirty-one thousand, five hundred sixty-five".