83347820 has 12 divisors (see below), whose sum is σ = 175030464. Its totient is φ = 33339120.

The previous prime is 83347801. The next prime is 83347829. The reversal of 83347820 is 2874338.

It is not an unprimeable number, because it can be changed into a prime (83347829) 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, 2083676 + ... + 2083715.

It is an arithmetic number, because the mean of its divisors is an integer number (14585872).

Almost surely, 2^83347820 is an apocalyptic number.

It is an amenable number.

83347820 is an abundant number, since it is smaller than the sum of its proper divisors (91682644).

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

83347820 is a wasteful number, since it uses less digits than its factorization.

83347820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167400 (or 4167398 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 83347820 is about 9129.5027246833. The cubic root of 83347820 is about 436.8155414396.

The spelling of 83347820 in words is "eighty-three million, three hundred forty-seven thousand, eight hundred twenty".