394292117 has 2 divisors, whose sum is σ = 394292118. Its totient is φ = 394292116.

The previous prime is 394292089. The next prime is 394292159. The reversal of 394292117 is 711292493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340254916 + 54037201 = 18446^2 + 7351^2 .

It is a cyclic number.

It is not a de Polignac number, because 394292117 - 2²⁶ = 327183253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394295117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197146058 + 197146059.

It is an arithmetic number, because the mean of its divisors is an integer number (197146059).

Almost surely, 2^394292117 is an apocalyptic number.

It is an amenable number.

394292117 is a deficient number, since it is larger than the sum of its proper divisors (1).

394292117 is an equidigital number, since it uses as much as digits as its factorization.

394292117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 394292117 is about 19856.7901988212. The cubic root of 394292117 is about 733.2848259696.

The spelling of 394292117 in words is "three hundred ninety-four million, two hundred ninety-two thousand, one hundred seventeen".