39317961 has 4 divisors (see below), whose sum is σ = 52423952. Its totient is φ = 26211972.

The previous prime is 39317959. The next prime is 39317969. The reversal of 39317961 is 16971393.

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: 16971393 = 3 ⋅5657131.

It is not a de Polignac number, because 39317961 - 2¹ = 39317959 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39317969) 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, 6552991 + ... + 6552996.

It is an arithmetic number, because the mean of its divisors is an integer number (13105988).

Almost surely, 2^39317961 is an apocalyptic number.

It is an amenable number.

39317961 is a deficient number, since it is larger than the sum of its proper divisors (13105991).

39317961 is a wasteful number, since it uses less digits than its factorization.

39317961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13105990.

The product of its digits is 30618, while the sum is 39.

The square root of 39317961 is about 6270.4035755285. The cubic root of 39317961 is about 340.0402518665.

The spelling of 39317961 in words is "thirty-nine million, three hundred seventeen thousand, nine hundred sixty-one".