394769727 has 64 divisors (see below), whose sum is σ = 657054720. Its totient is φ = 232243200.

The previous prime is 394769701. The next prime is 394769729. The reversal of 394769727 is 727967493.

It is not a de Polignac number, because 394769727 - 2⁸ = 394769471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394769729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2045343 + ... + 2045535.

It is an arithmetic number, because the mean of its divisors is an integer number (10266480).

Almost surely, 2^394769727 is an apocalyptic number.

394769727 is a deficient number, since it is larger than the sum of its proper divisors (262284993).

394769727 is a wasteful number, since it uses less digits than its factorization.

394769727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 375 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 54.

The square root of 394769727 is about 19868.8129237758. The cubic root of 394769727 is about 733.5807849264.

The spelling of 394769727 in words is "three hundred ninety-four million, seven hundred sixty-nine thousand, seven hundred twenty-seven".