83597213 has 4 divisors (see below), whose sum is σ = 95539680. Its totient is φ = 71654748.

The previous prime is 83597197. The next prime is 83597273. The reversal of 83597213 is 31279538.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83597213 - 2⁴ = 83597197 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 (83597273) 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, 5971223 + ... + 5971236.

It is an arithmetic number, because the mean of its divisors is an integer number (23884920).

Almost surely, 2^83597213 is an apocalyptic number.

It is an amenable number.

83597213 is a deficient number, since it is larger than the sum of its proper divisors (11942467).

83597213 is a wasteful number, since it uses less digits than its factorization.

83597213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11942466.

The product of its digits is 45360, while the sum is 38.

The square root of 83597213 is about 9143.1511526388. The cubic root of 83597213 is about 437.2507868295.

The spelling of 83597213 in words is "eighty-three million, five hundred ninety-seven thousand, two hundred thirteen".