394016677 has 4 divisors (see below), whose sum is σ = 394133920. Its totient is φ = 393899436.

The previous prime is 394016671. The next prime is 394016719. The reversal of 394016677 is 776610493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 394016677 - 2⁷ = 394016549 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 (394016671) 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, 53427 + ... + 60352.

It is an arithmetic number, because the mean of its divisors is an integer number (98533480).

Almost surely, 2^394016677 is an apocalyptic number.

It is an amenable number.

394016677 is a deficient number, since it is larger than the sum of its proper divisors (117243).

394016677 is a wasteful number, since it uses less digits than its factorization.

394016677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117242.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 394016677 is about 19849.8533243951. The cubic root of 394016677 is about 733.1140363331.

The spelling of 394016677 in words is "three hundred ninety-four million, sixteen thousand, six hundred seventy-seven".