84455959 has 12 divisors (see below), whose sum is σ = 98803800. Its totient is φ = 71978928.

The previous prime is 84455953. The next prime is 84455971. The reversal of 84455959 is 95955448.

It is not a de Polignac number, because 84455959 - 2³ = 84455951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84455951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3957 + ... + 13585.

It is an arithmetic number, because the mean of its divisors is an integer number (8233650).

Almost surely, 2^84455959 is an apocalyptic number.

84455959 is a deficient number, since it is larger than the sum of its proper divisors (14347841).

84455959 is a wasteful number, since it uses less digits than its factorization.

84455959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9822 (or 9815 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 49.

The square root of 84455959 is about 9189.9923286149. The cubic root of 84455959 is about 438.7428976970.

The spelling of 84455959 in words is "eighty-four million, four hundred fifty-five thousand, nine hundred fifty-nine".