84955855 has 4 divisors (see below), whose sum is σ = 101947032. Its totient is φ = 67964680.

The previous prime is 84955807. The next prime is 84955861. The reversal of 84955855 is 55855948.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 84955855 - 2²⁵ = 51401423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84955799 and 84955808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8495581 + ... + 8495590.

It is an arithmetic number, because the mean of its divisors is an integer number (25486758).

Almost surely, 2^84955855 is an apocalyptic number.

84955855 is a deficient number, since it is larger than the sum of its proper divisors (16991177).

84955855 is a wasteful number, since it uses less digits than its factorization.

84955855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16991176.

The product of its digits is 1440000, while the sum is 49.

The square root of 84955855 is about 9217.1500476015. The cubic root of 84955855 is about 439.6068371541.

The spelling of 84955855 in words is "eighty-four million, nine hundred fifty-five thousand, eight hundred fifty-five".