313208873 has 2 divisors, whose sum is σ = 313208874. Its totient is φ = 313208872.

The previous prime is 313208869. The next prime is 313208887. The reversal of 313208873 is 378802313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283484569 + 29724304 = 16837^2 + 5452^2 .

It is a cyclic number.

It is not a de Polignac number, because 313208873 - 2² = 313208869 is a prime.

It is not a weakly prime, because it can be changed into another prime (313208803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156604436 + 156604437.

It is an arithmetic number, because the mean of its divisors is an integer number (156604437).

Almost surely, 2^313208873 is an apocalyptic number.

It is an amenable number.

313208873 is a deficient number, since it is larger than the sum of its proper divisors (1).

313208873 is an equidigital number, since it uses as much as digits as its factorization.

313208873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 313208873 is about 17697.7081284555. The cubic root of 313208873 is about 679.1171306179.

The spelling of 313208873 in words is "three hundred thirteen million, two hundred eight thousand, eight hundred seventy-three".