723232313 has 4 divisors (see below), whose sum is σ = 723406308. Its totient is φ = 723058320.

The previous prime is 723232277. The next prime is 723232327. The reversal of 723232313 is 313232327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313232327 = 17 ⋅18425431.

It can be written as a sum of positive squares in 2 ways, for example, as 375894544 + 347337769 = 19388^2 + 18637^2 .

It is a cyclic number.

It is not a de Polignac number, because 723232313 - 2⁶ = 723232249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (723232813) 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, 80606 + ... + 89127.

It is an arithmetic number, because the mean of its divisors is an integer number (180851577).

Almost surely, 2^723232313 is an apocalyptic number.

It is an amenable number.

723232313 is a deficient number, since it is larger than the sum of its proper divisors (173995).

723232313 is a wasteful number, since it uses less digits than its factorization.

723232313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173994.

The product of its digits is 4536, while the sum is 26.

The square root of 723232313 is about 26892.9788792540. The cubic root of 723232313 is about 897.6201789705.

The spelling of 723232313 in words is "seven hundred twenty-three million, two hundred thirty-two thousand, three hundred thirteen".