83708404 has 18 divisors (see below), whose sum is σ = 158626230. Its totient is φ = 38634336.

The previous prime is 83708371. The next prime is 83708423. The reversal of 83708404 is 40480738.

It can be written as a sum of positive squares in 3 ways, for example, as 22500 + 83685904 = 150^2 + 9148^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 83708404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61239 + ... + 62590.

Almost surely, 2^83708404 is an apocalyptic number.

It is an amenable number.

83708404 is a deficient number, since it is larger than the sum of its proper divisors (74917826).

83708404 is a wasteful number, since it uses less digits than its factorization.

83708404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123859 (or 123844 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 83708404 is about 9149.2296943513. The cubic root of 83708404 is about 437.4445604853. Note that the first 3 decimals are identical.

The spelling of 83708404 in words is "eighty-three million, seven hundred eight thousand, four hundred four".