83238920 has 32 divisors (see below), whose sum is σ = 188092800. Its totient is φ = 33152448.

The previous prime is 83238917. The next prime is 83238923. The reversal of 83238920 is 2983238.

It is an interprime number because it is at equal distance from previous prime (83238917) and next prime (83238923).

It is not an unprimeable number, because it can be changed into a prime (83238923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5207 + ... + 13913.

It is an arithmetic number, because the mean of its divisors is an integer number (5877900).

Almost surely, 2^83238920 is an apocalyptic number.

It is an amenable number.

83238920 is an abundant number, since it is smaller than the sum of its proper divisors (104853880).

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

83238920 is a wasteful number, since it uses less digits than its factorization.

83238920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8957 (or 8953 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 83238920 is about 9123.5365949833. The cubic root of 83238920 is about 436.6252147458.

The spelling of 83238920 in words is "eighty-three million, two hundred thirty-eight thousand, nine hundred twenty".