396727651627 has 2 divisors, whose sum is σ = 396727651628. Its totient is φ = 396727651626.

The previous prime is 396727651609. The next prime is 396727651633. The reversal of 396727651627 is 726156727693.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396727651627 - 2³¹ = 394580167979 is a prime.

It is not a weakly prime, because it can be changed into another prime (396727651637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198363825813 + 198363825814.

It is an arithmetic number, because the mean of its divisors is an integer number (198363825814).

Almost surely, 2^396727651627 is an apocalyptic number.

396727651627 is a deficient number, since it is larger than the sum of its proper divisors (1).

396727651627 is an equidigital number, since it uses as much as digits as its factorization.

396727651627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40007520, while the sum is 61.

The spelling of 396727651627 in words is "three hundred ninety-six billion, seven hundred twenty-seven million, six hundred fifty-one thousand, six hundred twenty-seven".