227664091 has 2 divisors, whose sum is σ = 227664092. Its totient is φ = 227664090.

The previous prime is 227664079. The next prime is 227664131. The reversal of 227664091 is 190466722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 227664091 - 2¹³ = 227655899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227664091.

It is not a weakly prime, because it can be changed into another prime (227664001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113832045 + 113832046.

It is an arithmetic number, because the mean of its divisors is an integer number (113832046).

Almost surely, 2^227664091 is an apocalyptic number.

227664091 is a deficient number, since it is larger than the sum of its proper divisors (1).

227664091 is an equidigital number, since it uses as much as digits as its factorization.

227664091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 227664091 is about 15088.5417121735. The cubic root of 227664091 is about 610.6113113837.

The spelling of 227664091 in words is "two hundred twenty-seven million, six hundred sixty-four thousand, ninety-one".