724897 has 4 divisors (see below), whose sum is σ = 767556. Its totient is φ = 682240.

The previous prime is 724879. The next prime is 724901. The reversal of 724897 is 798427.

It is a happy number.

724897 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.

It can be written as a sum of positive squares in 2 ways, for example, as 516961 + 207936 = 719^2 + 456^2 .

It is a cyclic number.

It is not a de Polignac number, because 724897 - 2⁷ = 724769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724807) 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, 21304 + ... + 21337.

It is an arithmetic number, because the mean of its divisors is an integer number (191889).

2⁷²⁴⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

724897 is a deficient number, since it is larger than the sum of its proper divisors (42659).

724897 is a wasteful number, since it uses less digits than its factorization.

724897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42658.

The product of its digits is 28224, while the sum is 37.

The square root of 724897 is about 851.4088324653. The cubic root of 724897 is about 89.8308344963.

The spelling of 724897 in words is "seven hundred twenty-four thousand, eight hundred ninety-seven".