724645379 has 2 divisors, whose sum is σ = 724645380. Its totient is φ = 724645378.

The previous prime is 724645373. The next prime is 724645403. The reversal of 724645379 is 973546427.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-724645379 is a prime.

It is a super-2 number, since 2×724645379² = 1050221850612107282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (724645373) 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 as a sum of consecutive naturals, namely, 362322689 + 362322690.

It is an arithmetic number, because the mean of its divisors is an integer number (362322690).

Almost surely, 2^724645379 is an apocalyptic number.

724645379 is a deficient number, since it is larger than the sum of its proper divisors (1).

724645379 is an equidigital number, since it uses as much as digits as its factorization.

724645379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 47.

The square root of 724645379 is about 26919.2380835714. The cubic root of 724645379 is about 898.2043948375.

It can be divided in two parts, 7246 and 45379, that added together give a palindrome (52625).

The spelling of 724645379 in words is "seven hundred twenty-four million, six hundred forty-five thousand, three hundred seventy-nine".