724670629 has 2 divisors, whose sum is σ = 724670630. Its totient is φ = 724670628.

The previous prime is 724670587. The next prime is 724670633. The reversal of 724670629 is 926076427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381420900 + 343249729 = 19530^2 + 18527^2 .

It is an emirp because it is prime and its reverse (926076427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724670629 - 2⁷ = 724670501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724670689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362335314 + 362335315.

It is an arithmetic number, because the mean of its divisors is an integer number (362335315).

Almost surely, 2^724670629 is an apocalyptic number.

It is an amenable number.

724670629 is a deficient number, since it is larger than the sum of its proper divisors (1).

724670629 is an equidigital number, since it uses as much as digits as its factorization.

724670629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 724670629 is about 26919.7070749293. The cubic root of 724670629 is about 898.2148272495.

The spelling of 724670629 in words is "seven hundred twenty-four million, six hundred seventy thousand, six hundred twenty-nine".