83822820 has 48 divisors (see below), whose sum is σ = 235435200. Its totient is φ = 22283136.

The previous prime is 83822803. The next prime is 83822857. The reversal of 83822820 is 2822838.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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, 18939 + ... + 22941.

It is an arithmetic number, because the mean of its divisors is an integer number (4904900).

Almost surely, 2^83822820 is an apocalyptic number.

It is an amenable number.

83822820 is an abundant number, since it is smaller than the sum of its proper divisors (151612380).

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

83822820 is a wasteful number, since it uses less digits than its factorization.

83822820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364 (or 4362 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 83822820 is about 9155.4803260124. The cubic root of 83822820 is about 437.6437753311.

The spelling of 83822820 in words is "eighty-three million, eight hundred twenty-two thousand, eight hundred twenty".