83420704 has 48 divisors (see below), whose sum is σ = 171060120. Its totient is φ = 39997440.

The previous prime is 83420699. The next prime is 83420713. The reversal of 83420704 is 40702438.

It can be written as a sum of positive squares in 4 ways, for example, as 79210000 + 4210704 = 8900^2 + 2052^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223462 + ... + 223834.

Almost surely, 2^83420704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83420704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85530060).

83420704 is an abundant number, since it is smaller than the sum of its proper divisors (87639416).

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

83420704 is a wasteful number, since it uses less digits than its factorization.

83420704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 83420704 is about 9133.4935265757. The cubic root of 83420704 is about 436.9428296656.

The spelling of 83420704 in words is "eighty-three million, four hundred twenty thousand, seven hundred four".