227820623 has 2 divisors, whose sum is σ = 227820624. Its totient is φ = 227820622.

The previous prime is 227820613. The next prime is 227820629. The reversal of 227820623 is 326028722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 227820623 - 2¹² = 227816527 is a prime.

It is equal to p_12529328 and since 227820623 and 12529328 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227820623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227820629) 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 as a sum of consecutive naturals, namely, 113910311 + 113910312.

It is an arithmetic number, because the mean of its divisors is an integer number (113910312).

Almost surely, 2^227820623 is an apocalyptic number.

227820623 is a deficient number, since it is larger than the sum of its proper divisors (1).

227820623 is an equidigital number, since it uses as much as digits as its factorization.

227820623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 227820623 is about 15093.7279358017. The cubic root of 227820623 is about 610.7512226482.

The spelling of 227820623 in words is "two hundred twenty-seven million, eight hundred twenty thousand, six hundred twenty-three".