394880577 has 16 divisors (see below), whose sum is σ = 648009600. Its totient is φ = 208288512.

The previous prime is 394880531. The next prime is 394880599. The reversal of 394880577 is 775088493.

It is not a de Polignac number, because 394880577 - 2¹⁴ = 394864193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (394884577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 722952 + ... + 723497.

It is an arithmetic number, because the mean of its divisors is an integer number (40500600).

Almost surely, 2^394880577 is an apocalyptic number.

It is an amenable number.

394880577 is a deficient number, since it is larger than the sum of its proper divisors (253129023).

394880577 is a wasteful number, since it uses less digits than its factorization.

394880577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446472.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The square root of 394880577 is about 19871.6022756093. The cubic root of 394880577 is about 733.6494408325.

The spelling of 394880577 in words is "three hundred ninety-four million, eight hundred eighty thousand, five hundred seventy-seven".