83776920 has 64 divisors (see below), whose sum is σ = 252102240. Its totient is φ = 22272000.

The previous prime is 83776907. The next prime is 83776949. The reversal of 83776920 is 2967738.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47250 + ... + 48990.

Almost surely, 2^83776920 is an apocalyptic number.

It is an amenable number.

83776920 is an abundant number, since it is smaller than the sum of its proper divisors (168325320).

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

83776920 is a wasteful number, since it uses less digits than its factorization.

83776920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 2152 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 83776920 is about 9152.9732874078. The cubic root of 83776920 is about 437.5638785639.

The spelling of 83776920 in words is "eighty-three million, seven hundred seventy-six thousand, nine hundred twenty".