7313213 has 16 divisors (see below), whose sum is σ = 8055936. Its totient is φ = 6612480.

The previous prime is 7313203. The next prime is 7313221. The reversal of 7313213 is 3123137.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7313213 - 2⁸ = 7312957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7313203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88070 + ... + 88152.

It is an arithmetic number, because the mean of its divisors is an integer number (503496).

Almost surely, 2^7313213 is an apocalyptic number.

7313213 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

7313213 is a deficient number, since it is larger than the sum of its proper divisors (742723).

7313213 is a wasteful number, since it uses less digits than its factorization.

7313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244.

The product of its digits is 378, while the sum is 20.

The square root of 7313213 is about 2704.2952871312. The cubic root of 7313213 is about 194.1047101859.

The spelling of 7313213 in words is "seven million, three hundred thirteen thousand, two hundred thirteen".