657314897 has 4 divisors (see below), whose sum is σ = 658779300. Its totient is φ = 655850496.

The previous prime is 657314893. The next prime is 657314909. The reversal of 657314897 is 798413756.

657314897 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 150209536 + 507105361 = 12256^2 + 22519^2 .

It is a cyclic number.

It is not a de Polignac number, because 657314897 - 2² = 657314893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (657314893) 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, 731528 + ... + 732425.

It is an arithmetic number, because the mean of its divisors is an integer number (164694825).

Almost surely, 2^657314897 is an apocalyptic number.

It is an amenable number.

657314897 is a deficient number, since it is larger than the sum of its proper divisors (1464403).

657314897 is a wasteful number, since it uses less digits than its factorization.

657314897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464402.

The product of its digits is 1270080, while the sum is 50.

The square root of 657314897 is about 25638.1531511145. The cubic root of 657314897 is about 869.4764529610.

The spelling of 657314897 in words is "six hundred fifty-seven million, three hundred fourteen thousand, eight hundred ninety-seven".