724909427 has 12 divisors (see below), whose sum is σ = 843674328. Its totient is φ = 620241600.

The previous prime is 724909403. The next prime is 724909441.

724909427 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 724909427 - 2²⁸ = 456473971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724909477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174149 + ... + 178262.

It is an arithmetic number, because the mean of its divisors is an integer number (70306194).

Almost surely, 2^724909427 is an apocalyptic number.

724909427 is a deficient number, since it is larger than the sum of its proper divisors (118764901).

724909427 is a wasteful number, since it uses less digits than its factorization.

724909427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352450 (or 352439 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 724909427 is about 26924.1420847536. The cubic root of 724909427 is about 898.3134782043.

The spelling of 724909427 in words is "seven hundred twenty-four million, nine hundred nine thousand, four hundred twenty-seven".