83813900 has 18 divisors (see below), whose sum is σ = 181876380. Its totient is φ = 33525520.

The previous prime is 83813887. The next prime is 83813903. The reversal of 83813900 is 931838.

It is not an unprimeable number, because it can be changed into a prime (83813903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 418970 + ... + 419169.

Almost surely, 2^83813900 is an apocalyptic number.

It is an amenable number.

83813900 is an abundant number, since it is smaller than the sum of its proper divisors (98062480).

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

83813900 is a wasteful number, since it uses less digits than its factorization.

83813900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838153 (or 838146 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 83813900 is about 9154.9931731269. The cubic root of 83813900 is about 437.6282508356.

The spelling of 83813900 in words is "eighty-three million, eight hundred thirteen thousand, nine hundred".