84078736 has 40 divisors (see below), whose sum is σ = 197130240. Its totient is φ = 33913344.

The previous prime is 84078721. The next prime is 84078739. The reversal of 84078736 is 63787048.

It is a junction number, because it is equal to n+sod(n) for n = 84078692 and 84078701.

It is not an unprimeable number, because it can be changed into a prime (84078739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20176 + ... + 23983.

It is an arithmetic number, because the mean of its divisors is an integer number (4928256).

Almost surely, 2^84078736 is an apocalyptic number.

It is an amenable number.

84078736 is an abundant number, since it is smaller than the sum of its proper divisors (113051504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84078736 is a wasteful number, since it uses less digits than its factorization.

84078736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44191 (or 44185 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 84078736 is about 9169.4457847789. The cubic root of 84078736 is about 438.0887069000.

The spelling of 84078736 in words is "eighty-four million, seventy-eight thousand, seven hundred thirty-six".