84405339 has 12 divisors (see below), whose sum is σ = 122025072. Its totient is φ = 56221200.

The previous prime is 84405337. The next prime is 84405359. The reversal of 84405339 is 93350448.

84405339 is a `hidden beast` number, since 84 + 40 + 533 + 9 = 666.

It is not a de Polignac number, because 84405339 - 2¹ = 84405337 is a prime.

It is a super-2 number, since 2×84405339² = 14248522503409842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84405337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9034 + ... + 15824.

It is an arithmetic number, because the mean of its divisors is an integer number (10168756).

Almost surely, 2^84405339 is an apocalyptic number.

84405339 is a deficient number, since it is larger than the sum of its proper divisors (37619733).

84405339 is a wasteful number, since it uses less digits than its factorization.

84405339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8178 (or 8175 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 84405339 is about 9187.2378329942. The cubic root of 84405339 is about 438.6552243725.

The spelling of 84405339 in words is "eighty-four million, four hundred five thousand, three hundred thirty-nine".