394036397 has 8 divisors (see below), whose sum is σ = 408278880. Its totient is φ = 380046160.

The previous prime is 394036367. The next prime is 394036429. The reversal of 394036397 is 793630493.

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 394036397 - 2⁸ = 394036141 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 (394036367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59879 + ... + 66132.

It is an arithmetic number, because the mean of its divisors is an integer number (51034860).

Almost surely, 2^394036397 is an apocalyptic number.

It is an amenable number.

394036397 is a deficient number, since it is larger than the sum of its proper divisors (14242483).

394036397 is a wasteful number, since it uses less digits than its factorization.

394036397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126123.

The product of its (nonzero) digits is 367416, while the sum is 44.

The square root of 394036397 is about 19850.3500472914. The cubic root of 394036397 is about 733.1262665833.

The spelling of 394036397 in words is "three hundred ninety-four million, thirty-six thousand, three hundred ninety-seven".