394030961 has 4 divisors (see below), whose sum is σ = 394368624. Its totient is φ = 393693300.

The previous prime is 394030957. The next prime is 394030979. The reversal of 394030961 is 169030493.

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, and also an emirpimes, since its reverse is a distinct semiprime: 169030493 = 1129 ⋅149717.

It is a cyclic number.

It is not a de Polignac number, because 394030961 - 2² = 394030957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394030361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167075 + ... + 169416.

It is an arithmetic number, because the mean of its divisors is an integer number (98592156).

Almost surely, 2^394030961 is an apocalyptic number.

It is an amenable number.

394030961 is a deficient number, since it is larger than the sum of its proper divisors (337663).

394030961 is a wasteful number, since it uses less digits than its factorization.

394030961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337662.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 394030961 is about 19850.2131222816. The cubic root of 394030961 is about 733.1228952427.

The spelling of 394030961 in words is "three hundred ninety-four million, thirty thousand, nine hundred sixty-one".