317916946 has 4 divisors (see below), whose sum is σ = 476875422. Its totient is φ = 158958472.

The previous prime is 317916923. The next prime is 317916953. The reversal of 317916946 is 649619713.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 193349025 + 124567921 = 13905^2 + 11161^2 .

It is a junction number, because it is equal to n+sod(n) for n = 317916896 and 317916905.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 79479235 + ... + 79479238.

Almost surely, 2^317916946 is an apocalyptic number.

317916946 is a deficient number, since it is larger than the sum of its proper divisors (158958476).

317916946 is a wasteful number, since it uses less digits than its factorization.

317916946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158958475.

The product of its digits is 244944, while the sum is 46.

The square root of 317916946 is about 17830.2256295314. The cubic root of 317916946 is about 682.5029914846.

The spelling of 317916946 in words is "three hundred seventeen million, nine hundred sixteen thousand, nine hundred forty-six".