394252697 has 4 divisors (see below), whose sum is σ = 395707776. Its totient is φ = 392797620.

The previous prime is 394252693. The next prime is 394252711. The reversal of 394252697 is 796252493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 394252697 - 2² = 394252693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394252693) 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 3 ways as a sum of consecutive naturals, for example, 727133 + ... + 727674.

It is an arithmetic number, because the mean of its divisors is an integer number (98926944).

Almost surely, 2^394252697 is an apocalyptic number.

It is an amenable number.

394252697 is a deficient number, since it is larger than the sum of its proper divisors (1455079).

394252697 is a wasteful number, since it uses less digits than its factorization.

394252697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455078.

The product of its digits is 816480, while the sum is 47.

The square root of 394252697 is about 19855.7975664540. The cubic root of 394252697 is about 733.2603880382.

The spelling of 394252697 in words is "three hundred ninety-four million, two hundred fifty-two thousand, six hundred ninety-seven".