394729007 has 2 divisors, whose sum is σ = 394729008. Its totient is φ = 394729006.

The previous prime is 394728989. The next prime is 394729019. The reversal of 394729007 is 700927493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 394729007 - 2⁸ = 394728751 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394729087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197364503 + 197364504.

It is an arithmetic number, because the mean of its divisors is an integer number (197364504).

Almost surely, 2^394729007 is an apocalyptic number.

394729007 is a deficient number, since it is larger than the sum of its proper divisors (1).

394729007 is an equidigital number, since it uses as much as digits as its factorization.

394729007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 394729007 is about 19867.7881758388. The cubic root of 394729007 is about 733.5555614145. Note that the first 4 decimals are identical.

The spelling of 394729007 in words is "three hundred ninety-four million, seven hundred twenty-nine thousand, seven".