84215044 has 12 divisors (see below), whose sum is σ = 147695184. Its totient is φ = 42016424.

The previous prime is 84214993. The next prime is 84215069. The reversal of 84215044 is 44051248.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20674 + ... + 24409.

It is an arithmetic number, because the mean of its divisors is an integer number (12307932).

Almost surely, 2^84215044 is an apocalyptic number.

It is an amenable number.

84215044 is a deficient number, since it is larger than the sum of its proper divisors (63480140).

84215044 is a wasteful number, since it uses less digits than its factorization.

84215044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45554 (or 45552 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 84215044 is about 9176.8755031329. The cubic root of 84215044 is about 438.3253214411.

The spelling of 84215044 in words is "eighty-four million, two hundred fifteen thousand, forty-four".