84399412 has 24 divisors (see below), whose sum is σ = 149990400. Its totient is φ = 41549376.

The previous prime is 84399389. The next prime is 84399433. The reversal of 84399412 is 21499348.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136039 + ... + 136657.

It is an arithmetic number, because the mean of its divisors is an integer number (6249600).

Almost surely, 2^84399412 is an apocalyptic number.

It is an amenable number.

84399412 is a deficient number, since it is larger than the sum of its proper divisors (65590988).

84399412 is a wasteful number, since it uses less digits than its factorization.

84399412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1093 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 84399412 is about 9186.9152603036. The cubic root of 84399412 is about 438.6449565766.

The spelling of 84399412 in words is "eighty-four million, three hundred ninety-nine thousand, four hundred twelve".