83881776 has 40 divisors (see below), whose sum is σ = 236395584. Its totient is φ = 25418560.

The previous prime is 83881769. The next prime is 83881781. The reversal of 83881776 is 67718838.

It is a Smith number, since the sum of its digits (48) 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 (48).

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, 78906 + ... + 79961.

Almost surely, 2^83881776 is an apocalyptic number.

It is an amenable number.

83881776 is an abundant number, since it is smaller than the sum of its proper divisors (152513808).

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

83881776 is a wasteful number, since it uses less digits than its factorization.

83881776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158889 (or 158883 counting only the distinct ones).

The product of its digits is 451584, while the sum is 48.

The square root of 83881776 is about 9158.6994709948. The cubic root of 83881776 is about 437.7463555101.

The spelling of 83881776 in words is "eighty-three million, eight hundred eighty-one thousand, seven hundred seventy-six".