227620823 has 2 divisors, whose sum is σ = 227620824. Its totient is φ = 227620822.

The previous prime is 227620819. The next prime is 227620843. The reversal of 227620823 is 328026722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 227620823 - 2² = 227620819 is a prime.

It is a super-2 number, since 2×227620823² = 103622478126394658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 227620823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227620843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113810411 + 113810412.

It is an arithmetic number, because the mean of its divisors is an integer number (113810412).

Almost surely, 2^227620823 is an apocalyptic number.

227620823 is a deficient number, since it is larger than the sum of its proper divisors (1).

227620823 is an equidigital number, since it uses as much as digits as its factorization.

227620823 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 227620823 is about 15087.1078408024. The cubic root of 227620823 is about 610.5726263134.

The spelling of 227620823 in words is "two hundred twenty-seven million, six hundred twenty thousand, eight hundred twenty-three".