670314257 has 4 divisors (see below), whose sum is σ = 670448436. Its totient is φ = 670180080.

The previous prime is 670314241. The next prime is 670314259. The reversal of 670314257 is 752413076.

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 547747216 + 122567041 = 23404^2 + 11071^2 .

It is a cyclic number.

It is not a de Polignac number, because 670314257 - 2⁴ = 670314241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670314259) 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, 59294 + ... + 69687.

It is an arithmetic number, because the mean of its divisors is an integer number (167612109).

Almost surely, 2^670314257 is an apocalyptic number.

It is an amenable number.

670314257 is a deficient number, since it is larger than the sum of its proper divisors (134179).

670314257 is a wasteful number, since it uses less digits than its factorization.

670314257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134178.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 670314257 is about 25890.4279029915. The cubic root of 670314257 is about 875.1707996374.

The spelling of 670314257 in words is "six hundred seventy million, three hundred fourteen thousand, two hundred fifty-seven".