84339855 has 24 divisors (see below), whose sum is σ = 149303232. Its totient is φ = 44023104.

The previous prime is 84339833. The next prime is 84339863. The reversal of 84339855 is 55893348.

It is a happy number.

It is not a de Polignac number, because 84339855 - 2⁵ = 84339823 is a prime.

It is a super-2 number, since 2×84339855² = 14226422282842050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 84339855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17824 + ... + 22053.

It is an arithmetic number, because the mean of its divisors is an integer number (6220968).

Almost surely, 2^84339855 is an apocalyptic number.

84339855 is a deficient number, since it is larger than the sum of its proper divisors (64963377).

84339855 is a wasteful number, since it uses less digits than its factorization.

84339855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39935 (or 39932 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 84339855 is about 9183.6732846939. The cubic root of 84339855 is about 438.5417547319.

The spelling of 84339855 in words is "eighty-four million, three hundred thirty-nine thousand, eight hundred fifty-five".