396618307 has 2 divisors, whose sum is σ = 396618308. Its totient is φ = 396618306.

The previous prime is 396618269. The next prime is 396618311. The reversal of 396618307 is 703816693.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396618307 is a prime.

It is not a weakly prime, because it can be changed into another prime (396618317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198309153 + 198309154.

It is an arithmetic number, because the mean of its divisors is an integer number (198309154).

Almost surely, 2^396618307 is an apocalyptic number.

396618307 is a deficient number, since it is larger than the sum of its proper divisors (1).

396618307 is an equidigital number, since it uses as much as digits as its factorization.

396618307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 396618307 is about 19915.2782305445. The cubic root of 396618307 is about 734.7240434423.

The spelling of 396618307 in words is "three hundred ninety-six million, six hundred eighteen thousand, three hundred seven".