394906359 has 4 divisors (see below), whose sum is σ = 526541816. Its totient is φ = 263270904.

The previous prime is 394906289. The next prime is 394906363. The reversal of 394906359 is 953609493.

It is a happy number.

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

It is not a de Polignac number, because 394906359 - 2¹⁷ = 394775287 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 (394904359) 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, 65817724 + ... + 65817729.

It is an arithmetic number, because the mean of its divisors is an integer number (131635454).

Almost surely, 2^394906359 is an apocalyptic number.

394906359 is a deficient number, since it is larger than the sum of its proper divisors (131635457).

394906359 is a wasteful number, since it uses less digits than its factorization.

394906359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131635456.

The product of its (nonzero) digits is 787320, while the sum is 48.

The square root of 394906359 is about 19872.2509796953. The cubic root of 394906359 is about 733.6654072954.

The spelling of 394906359 in words is "three hundred ninety-four million, nine hundred six thousand, three hundred fifty-nine".