1227664093 has 2 divisors, whose sum is σ = 1227664094. Its totient is φ = 1227664092.

The previous prime is 1227664091. The next prime is 1227664183. The reversal of 1227664093 is 3904667221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1054820484 + 172843609 = 32478^2 + 13147^2 .

It is a cyclic number.

It is not a de Polignac number, because 1227664093 - 2¹ = 1227664091 is a prime.

Together with 1227664091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1227664091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613832046 + 613832047.

It is an arithmetic number, because the mean of its divisors is an integer number (613832047).

Almost surely, 2^1227664093 is an apocalyptic number.

It is an amenable number.

1227664093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227664093 is an equidigital number, since it uses as much as digits as its factorization.

1227664093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 1227664093 is about 35038.0378017948. The cubic root of 1227664093 is about 1070.7625777686.

The spelling of 1227664093 in words is "one billion, two hundred twenty-seven million, six hundred sixty-four thousand, ninety-three".