83981192 has 8 divisors (see below), whose sum is σ = 157464750. Its totient is φ = 41990592.

The previous prime is 83981189. The next prime is 83981221. The reversal of 83981192 is 29118938.

It can be written as a sum of positive squares in only one way, i.e., 42172036 + 41809156 = 6494^2 + 6466^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5248817 + ... + 5248832.

Almost surely, 2^83981192 is an apocalyptic number.

It is an amenable number.

83981192 is a deficient number, since it is larger than the sum of its proper divisors (73483558).

83981192 is a wasteful number, since it uses less digits than its factorization.

83981192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10497655 (or 10497651 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 83981192 is about 9164.1252719504. The cubic root of 83981192 is about 437.9192250426.

The spelling of 83981192 in words is "eighty-three million, nine hundred eighty-one thousand, one hundred ninety-two".