725723699 has 8 divisors (see below), whose sum is σ = 737680320. Its totient is φ = 713800296.

The previous prime is 725723689. The next prime is 725723723. The reversal of 725723699 is 996327527.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725723699 - 2²⁸ = 457288243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725723689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37832 + ... + 53690.

It is an arithmetic number, because the mean of its divisors is an integer number (92210040).

Almost surely, 2^725723699 is an apocalyptic number.

725723699 is a deficient number, since it is larger than the sum of its proper divisors (11956621).

725723699 is a wasteful number, since it uses less digits than its factorization.

725723699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16609.

The product of its digits is 1428840, while the sum is 50.

The square root of 725723699 is about 26939.2594367403. The cubic root of 725723699 is about 898.6497031059.

The spelling of 725723699 in words is "seven hundred twenty-five million, seven hundred twenty-three thousand, six hundred ninety-nine".