574721 has 12 divisors (see below), whose sum is σ = 688788. Its totient is φ = 477792.

The previous prime is 574711. The next prime is 574723. The reversal of 574721 is 127475.

574721 = 49² + 50² + ... + 122².

It can be written as a sum of positive squares in 2 ways, for example, as 261121 + 313600 = 511^2 + 560^2 .

It is not a de Polignac number, because 574721 - 2⁶ = 574657 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 574721.

It is not an unprimeable number, because it can be changed into a prime (574723) 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, 1655 + ... + 1971.

It is an arithmetic number, because the mean of its divisors is an integer number (57399).

2⁵⁷⁴⁷²¹ is an apocalyptic number.

It is an amenable number.

574721 is a deficient number, since it is larger than the sum of its proper divisors (114067).

574721 is a wasteful number, since it uses less digits than its factorization.

574721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 361 counting only the distinct ones).

The product of its digits is 1960, while the sum is 26.

The square root of 574721 is about 758.1035549316. The cubic root of 574721 is about 83.1417233205.

The spelling of 574721 in words is "five hundred seventy-four thousand, seven hundred twenty-one".