316891949 has 8 divisors (see below), whose sum is σ = 348932448. Its totient is φ = 285390160.

The previous prime is 316891943. The next prime is 316891969. The reversal of 316891949 is 949198613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 316891949 - 2⁴ = 316891933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 316891897 and 316891906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316891943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133442 + ... + 135795.

It is an arithmetic number, because the mean of its divisors is an integer number (43616556).

Almost surely, 2^316891949 is an apocalyptic number.

It is an amenable number.

316891949 is a deficient number, since it is larger than the sum of its proper divisors (32040499).

316891949 is a wasteful number, since it uses less digits than its factorization.

316891949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269355.

The product of its digits is 419904, while the sum is 50.

The square root of 316891949 is about 17801.4591817637. The cubic root of 316891949 is about 681.7687151285.

The spelling of 316891949 in words is "three hundred sixteen million, eight hundred ninety-one thousand, nine hundred forty-nine".