725683349 has 2 divisors, whose sum is σ = 725683350. Its totient is φ = 725683348.

The previous prime is 725683339. The next prime is 725683379. The reversal of 725683349 is 943386527.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 432931249 + 292752100 = 20807^2 + 17110^2 .

It is an emirp because it is prime and its reverse (943386527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725683349 - 2²⁸ = 457247893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725683339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362841674 + 362841675.

It is an arithmetic number, because the mean of its divisors is an integer number (362841675).

Almost surely, 2^725683349 is an apocalyptic number.

It is an amenable number.

725683349 is a deficient number, since it is larger than the sum of its proper divisors (1).

725683349 is an equidigital number, since it uses as much as digits as its factorization.

725683349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 47.

The square root of 725683349 is about 26938.5105193290. The cubic root of 725683349 is about 898.6330479208.

The spelling of 725683349 in words is "seven hundred twenty-five million, six hundred eighty-three thousand, three hundred forty-nine".