724399047 has 12 divisors (see below), whose sum is σ = 1050336144. Its totient is φ = 481094880.

The previous prime is 724399037. The next prime is 724399051. The reversal of 724399047 is 740993427.

It is not a de Polignac number, because 724399047 - 2⁴ = 724399031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 724398993 and 724399011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724399037) 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, 150654 + ... + 155387.

It is an arithmetic number, because the mean of its divisors is an integer number (87528012).

Almost surely, 2^724399047 is an apocalyptic number.

724399047 is a deficient number, since it is larger than the sum of its proper divisors (325937097).

724399047 is a wasteful number, since it uses less digits than its factorization.

724399047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306310 (or 306307 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 724399047 is about 26914.6623051451. The cubic root of 724399047 is about 898.1026064009.

The spelling of 724399047 in words is "seven hundred twenty-four million, three hundred ninety-nine thousand, forty-seven".