724734925 has 6 divisors (see below), whose sum is σ = 898671338. Its totient is φ = 579787920.

The previous prime is 724734859. The next prime is 724734929. The reversal of 724734925 is 529437427.

It can be written as a sum of positive squares in 3 ways, for example, as 10883401 + 713851524 = 3299^2 + 26718^2 .

It is not a de Polignac number, because 724734925 - 2¹⁷ = 724603853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724734929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14494674 + ... + 14494723.

Almost surely, 2^724734925 is an apocalyptic number.

It is an amenable number.

724734925 is a deficient number, since it is larger than the sum of its proper divisors (173936413).

724734925 is a wasteful number, since it uses less digits than its factorization.

724734925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28989407 (or 28989402 counting only the distinct ones).

The product of its digits is 423360, while the sum is 43.

The square root of 724734925 is about 26920.9012664881. The cubic root of 724734925 is about 898.2413910015.

The spelling of 724734925 in words is "seven hundred twenty-four million, seven hundred thirty-four thousand, nine hundred twenty-five".