724312373 has 4 divisors (see below), whose sum is σ = 724382208. Its totient is φ = 724242540.

The previous prime is 724312367. The next prime is 724312403. The reversal of 724312373 is 373213427.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 724312373 - 2¹⁰ = 724311349 is a prime.

It is a super-2 number, since 2×724312373² = 1049256827361782258, which contains 22 as substring.

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 (724312313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15911 + ... + 41252.

It is an arithmetic number, because the mean of its divisors is an integer number (181095552).

Almost surely, 2^724312373 is an apocalyptic number.

It is an amenable number.

724312373 is a deficient number, since it is larger than the sum of its proper divisors (69835).

724312373 is a wasteful number, since it uses less digits than its factorization.

724312373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69834.

The product of its digits is 21168, while the sum is 32.

The square root of 724312373 is about 26913.0520937333. The cubic root of 724312373 is about 898.0667857896.

The spelling of 724312373 in words is "seven hundred twenty-four million, three hundred twelve thousand, three hundred seventy-three".