227920993 has 2 divisors, whose sum is σ = 227920994. Its totient is φ = 227920992.

The previous prime is 227920969. The next prime is 227921033. The reversal of 227920993 is 399029722.

It is a happy number.

227920993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182601169 + 45319824 = 13513^2 + 6732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227920993 is a prime.

It is not a weakly prime, because it can be changed into another prime (227920963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113960496 + 113960497.

It is an arithmetic number, because the mean of its divisors is an integer number (113960497).

Almost surely, 2^227920993 is an apocalyptic number.

It is an amenable number.

227920993 is a deficient number, since it is larger than the sum of its proper divisors (1).

227920993 is an equidigital number, since it uses as much as digits as its factorization.

227920993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 227920993 is about 15097.0524606626. The cubic root of 227920993 is about 610.8409015356.

The spelling of 227920993 in words is "two hundred twenty-seven million, nine hundred twenty thousand, nine hundred ninety-three".