712730057 has 4 divisors (see below), whose sum is σ = 767555460. Its totient is φ = 657904656.

The previous prime is 712730041. The next prime is 712730059. The reversal of 712730057 is 750037217.

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 79905721 + 632824336 = 8939^2 + 25156^2 .

It is a cyclic number.

It is not a de Polignac number, because 712730057 - 2⁴ = 712730041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712730059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27412682 + ... + 27412707.

It is an arithmetic number, because the mean of its divisors is an integer number (191888865).

Almost surely, 2^712730057 is an apocalyptic number.

It is an amenable number.

712730057 is a deficient number, since it is larger than the sum of its proper divisors (54825403).

712730057 is a wasteful number, since it uses less digits than its factorization.

712730057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54825402.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 712730057 is about 26697.0046447162. The cubic root of 712730057 is about 893.2541132165.

The spelling of 712730057 in words is "seven hundred twelve million, seven hundred thirty thousand, fifty-seven".