83297213 has 4 divisors (see below), whose sum is σ = 83318268. Its totient is φ = 83276160.

The previous prime is 83297189. The next prime is 83297219. The reversal of 83297213 is 31279238.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28270489 + 55026724 = 5317^2 + 7418^2 .

It is a cyclic number.

It is not a de Polignac number, because 83297213 - 2¹⁰ = 83296189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83297219) 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, 2606 + ... + 13167.

It is an arithmetic number, because the mean of its divisors is an integer number (20829567).

Almost surely, 2^83297213 is an apocalyptic number.

It is an amenable number.

83297213 is a deficient number, since it is larger than the sum of its proper divisors (21055).

83297213 is a wasteful number, since it uses less digits than its factorization.

83297213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21054.

The product of its digits is 18144, while the sum is 35.

The square root of 83297213 is about 9126.7306851906. The cubic root of 83297213 is about 436.7271152129.

The spelling of 83297213 in words is "eighty-three million, two hundred ninety-seven thousand, two hundred thirteen".