83399976 has 96 divisors (see below), whose sum is σ = 254721600. Its totient is φ = 25264800.

The previous prime is 83399923. The next prime is 83399999. The reversal of 83399976 is 67999338.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24541 + ... + 27731.

It is an arithmetic number, because the mean of its divisors is an integer number (2653350).

Almost surely, 2^83399976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83399976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127360800).

83399976 is an abundant number, since it is smaller than the sum of its proper divisors (171321624).

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

83399976 is a wasteful number, since it uses less digits than its factorization.

83399976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228 (or 3207 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 83399976 is about 9132.3587314560. The cubic root of 83399976 is about 436.9066368071.

The spelling of 83399976 in words is "eighty-three million, three hundred ninety-nine thousand, nine hundred seventy-six".