83420875 has 8 divisors (see below), whose sum is σ = 104109408. Its totient is φ = 66736600.

The previous prime is 83420863. The next prime is 83420879. The reversal of 83420875 is 57802438.

It is a de Polignac number, because none of the positive numbers 2^k-83420875 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83420879) 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, 333559 + ... + 333808.

It is an arithmetic number, because the mean of its divisors is an integer number (13013676).

Almost surely, 2^83420875 is an apocalyptic number.

83420875 is a deficient number, since it is larger than the sum of its proper divisors (20688533).

83420875 is an equidigital number, since it uses as much as digits as its factorization.

83420875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667382 (or 667372 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 83420875 is about 9133.5028877206. The cubic root of 83420875 is about 436.9431282213.

The spelling of 83420875 in words is "eighty-three million, four hundred twenty thousand, eight hundred seventy-five".