394614089 has 2 divisors, whose sum is σ = 394614090. Its totient is φ = 394614088.

The previous prime is 394614071. The next prime is 394614109. The reversal of 394614089 is 980416493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325441600 + 69172489 = 18040^2 + 8317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394614089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (394614889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197307044 + 197307045.

It is an arithmetic number, because the mean of its divisors is an integer number (197307045).

Almost surely, 2^394614089 is an apocalyptic number.

It is an amenable number.

394614089 is a deficient number, since it is larger than the sum of its proper divisors (1).

394614089 is an equidigital number, since it uses as much as digits as its factorization.

394614089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 394614089 is about 19864.8958970340. The cubic root of 394614089 is about 733.4843674912.

The spelling of 394614089 in words is "three hundred ninety-four million, six hundred fourteen thousand, eighty-nine".