614312857 has 2 divisors, whose sum is σ = 614312858. Its totient is φ = 614312856.

The previous prime is 614312851. The next prime is 614312869. The reversal of 614312857 is 758213416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 580858201 + 33454656 = 24101^2 + 5784^2 .

It is a cyclic number.

It is not a de Polignac number, because 614312857 - 2³ = 614312849 is a prime.

It is not a weakly prime, because it can be changed into another prime (614312851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307156428 + 307156429.

It is an arithmetic number, because the mean of its divisors is an integer number (307156429).

Almost surely, 2^614312857 is an apocalyptic number.

It is an amenable number.

614312857 is a deficient number, since it is larger than the sum of its proper divisors (1).

614312857 is an equidigital number, since it uses as much as digits as its factorization.

614312857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 614312857 is about 24785.3355232484. The cubic root of 614312857 is about 850.0866610604.

The spelling of 614312857 in words is "six hundred fourteen million, three hundred twelve thousand, eight hundred fifty-seven".