939143966 has 4 divisors (see below), whose sum is σ = 1408715952. Its totient is φ = 469571982.

The previous prime is 939143963. The next prime is 939143969. The reversal of 939143966 is 669341939.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 669341939 = 7 ⋅95620277.

It is an interprime number because it is at equal distance from previous prime (939143963) and next prime (939143969).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939143963) 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 as a sum of consecutive naturals, namely, 234785990 + ... + 234785993.

It is an arithmetic number, because the mean of its divisors is an integer number (352178988).

Almost surely, 2^939143966 is an apocalyptic number.

939143966 is a deficient number, since it is larger than the sum of its proper divisors (469571986).

939143966 is a wasteful number, since it uses less digits than its factorization.

939143966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469571985.

The product of its digits is 944784, while the sum is 50.

The square root of 939143966 is about 30645.4558784822. The cubic root of 939143966 is about 979.2886570506.

The spelling of 939143966 in words is "nine hundred thirty-nine million, one hundred forty-three thousand, nine hundred sixty-six".