394417967 has 4 divisors (see below), whose sum is σ = 394879056. Its totient is φ = 393956880.

The previous prime is 394417957. The next prime is 394417981. The reversal of 394417967 is 769714493.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 394417967 - 2⁸ = 394417711 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 (394417927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229259 + ... + 230972.

It is an arithmetic number, because the mean of its divisors is an integer number (98719764).

Almost surely, 2^394417967 is an apocalyptic number.

394417967 is a deficient number, since it is larger than the sum of its proper divisors (461089).

394417967 is an equidigital number, since it uses as much as digits as its factorization.

394417967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461088.

The product of its digits is 1143072, while the sum is 50.

The square root of 394417967 is about 19859.9588871679. The cubic root of 394417967 is about 733.3628341897.

The spelling of 394417967 in words is "three hundred ninety-four million, four hundred seventeen thousand, nine hundred sixty-seven".