394777117 has 16 divisors (see below), whose sum is σ = 475545600. Its totient is φ = 320148720.

The previous prime is 394777091. The next prime is 394777127. The reversal of 394777117 is 711777493.

It is a cyclic number.

It is not a de Polignac number, because 394777117 - 2⁷ = 394776989 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 (394777127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135684 + ... + 138562.

It is an arithmetic number, because the mean of its divisors is an integer number (29721600).

Almost surely, 2^394777117 is an apocalyptic number.

It is an amenable number.

394777117 is a deficient number, since it is larger than the sum of its proper divisors (80768483).

394777117 is a wasteful number, since it uses less digits than its factorization.

394777117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936.

The product of its digits is 259308, while the sum is 46.

The square root of 394777117 is about 19868.9988927475. The cubic root of 394777117 is about 733.5853623866.

The spelling of 394777117 in words is "three hundred ninety-four million, seven hundred seventy-seven thousand, one hundred seventeen".