313647 has 4 divisors (see below), whose sum is σ = 418200. Its totient is φ = 209096.

The previous prime is 313639. The next prime is 313661. The reversal of 313647 is 746313.

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

It is a cyclic number.

It is not a de Polignac number, because 313647 - 2³ = 313639 is a prime.

It is a D-number.

It is a plaindrome in base 8.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313647.

It is not an unprimeable number, because it can be changed into a prime (313637) 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, 52272 + ... + 52277.

It is an arithmetic number, because the mean of its divisors is an integer number (104550).

2³¹³⁶⁴⁷ is an apocalyptic number.

313647 is a deficient number, since it is larger than the sum of its proper divisors (104553).

313647 is a wasteful number, since it uses less digits than its factorization.

313647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104552.

The product of its digits is 1512, while the sum is 24.

The square root of 313647 is about 560.0419627135. The cubic root of 313647 is about 67.9433640300.

The spelling of 313647 in words is "three hundred thirteen thousand, six hundred forty-seven".