394622847 has 20 divisors (see below), whose sum is σ = 599169736. Its totient is φ = 258765840.

The previous prime is 394622843. The next prime is 394622849. The reversal of 394622847 is 748226493.

It is not a de Polignac number, because 394622847 - 2² = 394622843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394622843) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34993 + ... + 44874.

Almost surely, 2^394622847 is an apocalyptic number.

394622847 is a deficient number, since it is larger than the sum of its proper divisors (204546889).

394622847 is an equidigital number, since it uses as much as digits as its factorization.

394622847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79940 (or 79931 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 394622847 is about 19865.1163349224. The cubic root of 394622847 is about 733.4897937280.

The spelling of 394622847 in words is "three hundred ninety-four million, six hundred twenty-two thousand, eight hundred forty-seven".