83332820 has 12 divisors (see below), whose sum is σ = 174998964. Its totient is φ = 33333120.

The previous prime is 83332817. The next prime is 83332829. The reversal of 83332820 is 2823338.

It can be written as a sum of positive squares in 2 ways, for example, as 64288324 + 19044496 = 8018^2 + 4364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83332829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083301 + ... + 2083340.

It is an arithmetic number, because the mean of its divisors is an integer number (14583247).

Almost surely, 2^83332820 is an apocalyptic number.

It is an amenable number.

83332820 is an abundant number, since it is smaller than the sum of its proper divisors (91666144).

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

83332820 is a wasteful number, since it uses less digits than its factorization.

83332820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166650 (or 4166648 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 83332820 is about 9128.6811752849. The cubic root of 83332820 is about 436.7893354904.

The spelling of 83332820 in words is "eighty-three million, three hundred thirty-two thousand, eight hundred twenty".