83720652 has 24 divisors (see below), whose sum is σ = 197176896. Its totient is φ = 27645648.

The previous prime is 83720641. The next prime is 83720653. The reversal of 83720652 is 25602738.

It is not an unprimeable number, because it can be changed into a prime (83720653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31318 + ... + 33885.

It is an arithmetic number, because the mean of its divisors is an integer number (8215704).

Almost surely, 2^83720652 is an apocalyptic number.

It is an amenable number.

83720652 is an abundant number, since it is smaller than the sum of its proper divisors (113456244).

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

83720652 is a wasteful number, since it uses less digits than its factorization.

83720652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65317 (or 65315 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 83720652 is about 9149.8990158362. The cubic root of 83720652 is about 437.4658947019.

The spelling of 83720652 in words is "eighty-three million, seven hundred twenty thousand, six hundred fifty-two".