313828865 has 32 divisors (see below), whose sum is σ = 447482880. Its totient is φ = 206728704.

The previous prime is 313828861. The next prime is 313828873. The reversal of 313828865 is 568828313.

It is not a de Polignac number, because 313828865 - 2² = 313828861 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (313828861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235832 + ... + 237158.

It is an arithmetic number, because the mean of its divisors is an integer number (13983840).

Almost surely, 2^313828865 is an apocalyptic number.

313828865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

313828865 is a deficient number, since it is larger than the sum of its proper divisors (133654015).

313828865 is a wasteful number, since it uses less digits than its factorization.

313828865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601.

The product of its digits is 276480, while the sum is 44.

The square root of 313828865 is about 17715.2156351539. The cubic root of 313828865 is about 679.5649358055.

The spelling of 313828865 in words is "three hundred thirteen million, eight hundred twenty-eight thousand, eight hundred sixty-five".