394274397 has 8 divisors (see below), whose sum is σ = 573490080. Its totient is φ = 238954160.

The previous prime is 394274393. The next prime is 394274411. The reversal of 394274397 is 793472493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 394274397 - 2² = 394274393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394274393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5973822 + ... + 5973887.

It is an arithmetic number, because the mean of its divisors is an integer number (71686260).

Almost surely, 2^394274397 is an apocalyptic number.

It is an amenable number.

394274397 is a deficient number, since it is larger than the sum of its proper divisors (179215683).

394274397 is a wasteful number, since it uses less digits than its factorization.

394274397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11947723.

The product of its digits is 1143072, while the sum is 48.

The square root of 394274397 is about 19856.3439988332. The cubic root of 394274397 is about 733.2738408808.

The spelling of 394274397 in words is "three hundred ninety-four million, two hundred seventy-four thousand, three hundred ninety-seven".