83918700 has 72 divisors (see below), whose sum is σ = 269791760. Its totient is φ = 22377600.

The previous prime is 83918699. The next prime is 83918711. The reversal of 83918700 is 781938.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12841 + ... + 18240.

Almost surely, 2^83918700 is an apocalyptic number.

It is an amenable number.

83918700 is an abundant number, since it is smaller than the sum of its proper divisors (185873060).

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

83918700 is a wasteful number, since it uses less digits than its factorization.

83918700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31104 (or 31091 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 83918700 is about 9160.7150375940. The cubic root of 83918700 is about 437.8105767515.

The spelling of 83918700 in words is "eighty-three million, nine hundred eighteen thousand, seven hundred".