84801565 has 16 divisors (see below), whose sum is σ = 103981248. Its totient is φ = 66375936.

The previous prime is 84801553. The next prime is 84801569. The reversal of 84801565 is 56510848.

It is a cyclic number.

It is not a de Polignac number, because 84801565 - 2⁹ = 84801053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84801569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53829 + ... + 55381.

It is an arithmetic number, because the mean of its divisors is an integer number (6498828).

Almost surely, 2^84801565 is an apocalyptic number.

It is an amenable number.

84801565 is a deficient number, since it is larger than the sum of its proper divisors (19179683).

84801565 is a wasteful number, since it uses less digits than its factorization.

84801565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 84801565 is about 9208.7765202550. The cubic root of 84801565 is about 439.3405496765.

The spelling of 84801565 in words is "eighty-four million, eight hundred one thousand, five hundred sixty-five".