84818560 has 32 divisors (see below), whose sum is σ = 202770900. Its totient is φ = 33927168.

The previous prime is 84818557. The next prime is 84818561. The reversal of 84818560 is 6581848.

It can be written as a sum of positive squares in 2 ways, for example, as 83320384 + 1498176 = 9128^2 + 1224^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (84818561) 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, 65625 + ... + 66904.

Almost surely, 2^84818560 is an apocalyptic number.

84818560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84818560 is an abundant number, since it is smaller than the sum of its proper divisors (117952340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84818560 is a wasteful number, since it uses less digits than its factorization.

84818560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132548 (or 132536 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 84818560 is about 9209.6992350456. The cubic root of 84818560 is about 439.3698969883.

The spelling of 84818560 in words is "eighty-four million, eight hundred eighteen thousand, five hundred sixty".