939317961 has 4 divisors (see below), whose sum is σ = 1252423952. Its totient is φ = 626211972.

The previous prime is 939317959. The next prime is 939317963. The reversal of 939317961 is 169713939.

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: 169713939 = 3 ⋅56571313.

It is an interprime number because it is at equal distance from previous prime (939317959) and next prime (939317963).

It is not a de Polignac number, because 939317961 - 2¹ = 939317959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 939317961.

It is not an unprimeable number, because it can be changed into a prime (939317963) 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, 156552991 + ... + 156552996.

It is an arithmetic number, because the mean of its divisors is an integer number (313105988).

Almost surely, 2^939317961 is an apocalyptic number.

It is an amenable number.

939317961 is a deficient number, since it is larger than the sum of its proper divisors (313105991).

939317961 is a wasteful number, since it uses less digits than its factorization.

939317961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313105990.

The product of its digits is 275562, while the sum is 48.

The square root of 939317961 is about 30648.2945855067. The cubic root of 939317961 is about 979.3491308488.

The spelling of 939317961 in words is "nine hundred thirty-nine million, three hundred seventeen thousand, nine hundred sixty-one".