84078044 has 12 divisors (see below), whose sum is σ = 150725568. Its totient is φ = 41013600.

The previous prime is 84078017. The next prime is 84078067. The reversal of 84078044 is 44087048.

It is a junction number, because it is equal to n+sod(n) for n = 84077995 and 84078013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256172 + ... + 256499.

It is an arithmetic number, because the mean of its divisors is an integer number (12560464).

Almost surely, 2^84078044 is an apocalyptic number.

It is an amenable number.

84078044 is a deficient number, since it is larger than the sum of its proper divisors (66647524).

84078044 is a wasteful number, since it uses less digits than its factorization.

84078044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512716 (or 512714 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 84078044 is about 9169.4080506868. The cubic root of 84078044 is about 438.0875050177.

The spelling of 84078044 in words is "eighty-four million, seventy-eight thousand, forty-four".