83791768 has 8 divisors (see below), whose sum is σ = 157109580. Its totient is φ = 41895880.

The previous prime is 83791733. The next prime is 83791811. The reversal of 83791768 is 86719738.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5236978 + ... + 5236993.

Almost surely, 2^83791768 is an apocalyptic number.

It is an amenable number.

83791768 is a deficient number, since it is larger than the sum of its proper divisors (73317812).

83791768 is a wasteful number, since it uses less digits than its factorization.

83791768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10473977 (or 10473973 counting only the distinct ones).

The product of its digits is 508032, while the sum is 49.

The square root of 83791768 is about 9153.7843540254. The cubic root of 83791768 is about 437.5897272292.

The spelling of 83791768 in words is "eighty-three million, seven hundred ninety-one thousand, seven hundred sixty-eight".