306813227 has 8 divisors (see below), whose sum is σ = 358104576. Its totient is φ = 257387112.

The previous prime is 306813217. The next prime is 306813259. The reversal of 306813227 is 722318603.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 306813227 - 2²⁸ = 38377771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306813193 and 306813202.

It is not an unprimeable number, because it can be changed into a prime (306813217) 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 7 ways as a sum of consecutive naturals, for example, 465953 + ... + 466610.

It is an arithmetic number, because the mean of its divisors is an integer number (44763072).

Almost surely, 2^306813227 is an apocalyptic number.

306813227 is a deficient number, since it is larger than the sum of its proper divisors (51291349).

306813227 is an equidigital number, since it uses as much as digits as its factorization.

306813227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932617.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 306813227 is about 17516.0848079701. The cubic root of 306813227 is about 674.4628388530.

The spelling of 306813227 in words is "three hundred six million, eight hundred thirteen thousand, two hundred twenty-seven".