657465427 has 2 divisors, whose sum is σ = 657465428. Its totient is φ = 657465426.

The previous prime is 657465421. The next prime is 657465449. The reversal of 657465427 is 724564756.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-657465427 is a prime.

It is not a weakly prime, because it can be changed into another prime (657465421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328732713 + 328732714.

It is an arithmetic number, because the mean of its divisors is an integer number (328732714).

Almost surely, 2^657465427 is an apocalyptic number.

657465427 is a deficient number, since it is larger than the sum of its proper divisors (1).

657465427 is an equidigital number, since it uses as much as digits as its factorization.

657465427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1411200, while the sum is 46.

The square root of 657465427 is about 25641.0886469354. The cubic root of 657465427 is about 869.5428200865.

The spelling of 657465427 in words is "six hundred fifty-seven million, four hundred sixty-five thousand, four hundred twenty-seven".