83778332 has 24 divisors (see below), whose sum is σ = 165458160. Its totient is φ = 36767360.

The previous prime is 83778311. The next prime is 83778347. The reversal of 83778332 is 23387738.

It is a self number, because there is not a number n which added to its sum of digits gives 83778332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31553 + ... + 34104.

It is an arithmetic number, because the mean of its divisors is an integer number (6894090).

Almost surely, 2^83778332 is an apocalyptic number.

It is an amenable number.

83778332 is a deficient number, since it is larger than the sum of its proper divisors (81679828).

83778332 is a wasteful number, since it uses less digits than its factorization.

83778332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65701 (or 65699 counting only the distinct ones).

The product of its digits is 169344, while the sum is 41.

The square root of 83778332 is about 9153.0504204882. The cubic root of 83778332 is about 437.5663368254.

The spelling of 83778332 in words is "eighty-three million, seven hundred seventy-eight thousand, three hundred thirty-two".