328631227 has 2 divisors, whose sum is σ = 328631228. Its totient is φ = 328631226.

The previous prime is 328631221. The next prime is 328631243. The reversal of 328631227 is 722136823.

It is a weak prime.

It is an emirp because it is prime and its reverse (722136823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328631227 - 2⁷ = 328631099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 328631192 and 328631201.

It is not a weakly prime, because it can be changed into another prime (328631221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164315613 + 164315614.

It is an arithmetic number, because the mean of its divisors is an integer number (164315614).

Almost surely, 2^328631227 is an apocalyptic number.

328631227 is a deficient number, since it is larger than the sum of its proper divisors (1).

328631227 is an equidigital number, since it uses as much as digits as its factorization.

328631227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 328631227 is about 18128.1887401913. The cubic root of 328631227 is about 690.0855645483.

The spelling of 328631227 in words is "three hundred twenty-eight million, six hundred thirty-one thousand, two hundred twenty-seven".