84805755 has 16 divisors (see below), whose sum is σ = 135824640. Its totient is φ = 45184608.

The previous prime is 84805751. The next prime is 84805757. The reversal of 84805755 is 55750848.

It is not a de Polignac number, because 84805755 - 2² = 84805751 is a prime.

It is a super-2 number, since 2×84805755² = 14384032162240050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84805751) 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, 17376 + ... + 21714.

It is an arithmetic number, because the mean of its divisors is an integer number (8489040).

Almost surely, 2^84805755 is an apocalyptic number.

84805755 is a deficient number, since it is larger than the sum of its proper divisors (51018885).

84805755 is a wasteful number, since it uses less digits than its factorization.

84805755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5650.

The product of its (nonzero) digits is 224000, while the sum is 42.

The square root of 84805755 is about 9209.0040178078. The cubic root of 84805755 is about 439.3477854179.

The spelling of 84805755 in words is "eighty-four million, eight hundred five thousand, seven hundred fifty-five".