83778896 has 20 divisors (see below), whose sum is σ = 162489600. Its totient is φ = 41846112.

The previous prime is 83778881. The next prime is 83778899. The reversal of 83778896 is 69887738.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83778899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18065 + ... + 22223.

It is an arithmetic number, because the mean of its divisors is an integer number (8124480).

Almost surely, 2^83778896 is an apocalyptic number.

It is an amenable number.

83778896 is a deficient number, since it is larger than the sum of its proper divisors (78710704).

83778896 is a wasteful number, since it uses less digits than its factorization.

83778896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5426 (or 5420 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 56.

The square root of 83778896 is about 9153.0812298373. The cubic root of 83778896 is about 437.5673187295.

The spelling of 83778896 in words is "eighty-three million, seven hundred seventy-eight thousand, eight hundred ninety-six".