304106813 has 2 divisors, whose sum is σ = 304106814. Its totient is φ = 304106812.

The previous prime is 304106809. The next prime is 304106857. The reversal of 304106813 is 318601403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195384484 + 108722329 = 13978^2 + 10427^2 .

It is a cyclic number.

It is not a de Polignac number, because 304106813 - 2² = 304106809 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304106893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152053406 + 152053407.

It is an arithmetic number, because the mean of its divisors is an integer number (152053407).

Almost surely, 2^304106813 is an apocalyptic number.

It is an amenable number.

304106813 is a deficient number, since it is larger than the sum of its proper divisors (1).

304106813 is an equidigital number, since it uses as much as digits as its factorization.

304106813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 304106813 is about 17438.6585779985. The cubic root of 304106813 is about 672.4738227259.

The spelling of 304106813 in words is "three hundred four million, one hundred six thousand, eight hundred thirteen".