724842901 has 4 divisors (see below), whose sum is σ = 733576032. Its totient is φ = 716109772.

The previous prime is 724842863. The next prime is 724842919. The reversal of 724842901 is 109248427.

724842901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 724842901 - 2⁹ = 724842389 is a prime.

It is a super-2 number, since 2×724842901² = 1050794462260191602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724842101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4366441 + ... + 4366606.

It is an arithmetic number, because the mean of its divisors is an integer number (183394008).

Almost surely, 2^724842901 is an apocalyptic number.

It is an amenable number.

724842901 is a deficient number, since it is larger than the sum of its proper divisors (8733131).

724842901 is an equidigital number, since it uses as much as digits as its factorization.

724842901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8733130.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 724842901 is about 26922.9066224284. The cubic root of 724842901 is about 898.2859975157.

The spelling of 724842901 in words is "seven hundred twenty-four million, eight hundred forty-two thousand, nine hundred one".