313661773 has 4 divisors (see below), whose sum is σ = 318343360. Its totient is φ = 308980188.

The previous prime is 313661771. The next prime is 313661783. The reversal of 313661773 is 377166313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 313661773 - 2¹ = 313661771 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 (313661771) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2340693 + ... + 2340826.

It is an arithmetic number, because the mean of its divisors is an integer number (79585840).

Almost surely, 2^313661773 is an apocalyptic number.

It is an amenable number.

313661773 is a deficient number, since it is larger than the sum of its proper divisors (4681587).

313661773 is an equidigital number, since it uses as much as digits as its factorization.

313661773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4681586.

The product of its digits is 47628, while the sum is 37.

The square root of 313661773 is about 17710.4989483639. The cubic root of 313661773 is about 679.4443074043. Note that the first 3 decimals are identical.

The spelling of 313661773 in words is "three hundred thirteen million, six hundred sixty-one thousand, seven hundred seventy-three".