723657379 has 2 divisors, whose sum is σ = 723657380. Its totient is φ = 723657378.

The previous prime is 723657373. The next prime is 723657409. The reversal of 723657379 is 973756327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 723657379 - 2¹⁵ = 723624611 is a prime.

It is a super-2 number, since 2×723657379² = 1047360004362299282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (723657373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361828689 + 361828690.

It is an arithmetic number, because the mean of its divisors is an integer number (361828690).

Almost surely, 2^723657379 is an apocalyptic number.

723657379 is a deficient number, since it is larger than the sum of its proper divisors (1).

723657379 is an equidigital number, since it uses as much as digits as its factorization.

723657379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1666980, while the sum is 49.

The square root of 723657379 is about 26900.8806361428. The cubic root of 723657379 is about 897.7959975779.

The spelling of 723657379 in words is "seven hundred twenty-three million, six hundred fifty-seven thousand, three hundred seventy-nine".