84078704 has 20 divisors (see below), whose sum is σ = 163442664. Its totient is φ = 41899968.

The previous prime is 84078703. The next prime is 84078721. The reversal of 84078704 is 40787048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84078703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3647 + ... + 13470.

Almost surely, 2^84078704 is an apocalyptic number.

It is an amenable number.

84078704 is a deficient number, since it is larger than the sum of its proper divisors (79363960).

84078704 is a wasteful number, since it uses less digits than its factorization.

84078704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17432 (or 17426 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 84078704 is about 9169.4440398532. Note that the first 3 decimals coincide. The cubic root of 84078704 is about 438.0886513217.

The spelling of 84078704 in words is "eighty-four million, seventy-eight thousand, seven hundred four".