83977950 has 48 divisors (see below), whose sum is σ = 238020480. Its totient is φ = 19194720.

The previous prime is 83977937. The next prime is 83977973. The reversal of 83977950 is 5977938.

It is a self number, because there is not a number n which added to its sum of digits gives 83977950.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38940 + ... + 41039.

It is an arithmetic number, because the mean of its divisors is an integer number (4958760).

Almost surely, 2^83977950 is an apocalyptic number.

83977950 is an abundant number, since it is smaller than the sum of its proper divisors (154042530).

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

83977950 is a wasteful number, since it uses less digits than its factorization.

83977950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80001 (or 79996 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 83977950 is about 9163.9483848394. The cubic root of 83977950 is about 437.9135898428.

The spelling of 83977950 in words is "eighty-three million, nine hundred seventy-seven thousand, nine hundred fifty".