316649397 has 8 divisors (see below), whose sum is σ = 424321600. Its totient is φ = 210038400.

The previous prime is 316649393. The next prime is 316649423. The reversal of 316649397 is 793946613.

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

It is not a de Polignac number, because 316649397 - 2² = 316649393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316649393) 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, 264604 + ... + 265797.

It is an arithmetic number, because the mean of its divisors is an integer number (53040200).

Almost surely, 2^316649397 is an apocalyptic number.

It is an amenable number.

316649397 is a deficient number, since it is larger than the sum of its proper divisors (107672203).

316649397 is a wasteful number, since it uses less digits than its factorization.

316649397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530603.

The product of its digits is 734832, while the sum is 48.

The square root of 316649397 is about 17794.6451776932. The cubic root of 316649397 is about 681.5947267240.

The spelling of 316649397 in words is "three hundred sixteen million, six hundred forty-nine thousand, three hundred ninety-seven".