394606448827 has 2 divisors, whose sum is σ = 394606448828. Its totient is φ = 394606448826.

The previous prime is 394606448749. The next prime is 394606448839. The reversal of 394606448827 is 728844606493.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394606448827 is a prime.

It is not a weakly prime, because it can be changed into another prime (394606448627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197303224413 + 197303224414.

It is an arithmetic number, because the mean of its divisors is an integer number (197303224414).

Almost surely, 2^394606448827 is an apocalyptic number.

394606448827 is a deficient number, since it is larger than the sum of its proper divisors (1).

394606448827 is an equidigital number, since it uses as much as digits as its factorization.

394606448827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55738368, while the sum is 61.

The spelling of 394606448827 in words is "three hundred ninety-four billion, six hundred six million, four hundred forty-eight thousand, eight hundred twenty-seven".