394654877 has 2 divisors, whose sum is σ = 394654878. Its totient is φ = 394654876.

The previous prime is 394654867. The next prime is 394654891. The reversal of 394654877 is 778456493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320195236 + 74459641 = 17894^2 + 8629^2 .

It is a cyclic number.

It is not a de Polignac number, because 394654877 - 2⁸ = 394654621 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394654837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197327438 + 197327439.

It is an arithmetic number, because the mean of its divisors is an integer number (197327439).

Almost surely, 2^394654877 is an apocalyptic number.

It is an amenable number.

394654877 is a deficient number, since it is larger than the sum of its proper divisors (1).

394654877 is an equidigital number, since it uses as much as digits as its factorization.

394654877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 53.

The square root of 394654877 is about 19865.9225056376. The cubic root of 394654877 is about 733.5096380280.

The spelling of 394654877 in words is "three hundred ninety-four million, six hundred fifty-four thousand, eight hundred seventy-seven".