2287218623 has 2 divisors, whose sum is σ = 2287218624. Its totient is φ = 2287218622.

The previous prime is 2287218559. The next prime is 2287218643. The reversal of 2287218623 is 3268127822.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2287218623 - 2⁶ = 2287218559 is a prime.

It is a super-2 number, since 2×2287218623² = 10462738058796032258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2287218643) 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, 1143609311 + 1143609312.

It is an arithmetic number, because the mean of its divisors is an integer number (1143609312).

Almost surely, 2^2287218623 is an apocalyptic number.

2287218623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2287218623 is an equidigital number, since it uses as much as digits as its factorization.

2287218623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 41.

The square root of 2287218623 is about 47824.8745215291. The cubic root of 2287218623 is about 1317.5564341089.

The spelling of 2287218623 in words is "two billion, two hundred eighty-seven million, two hundred eighteen thousand, six hundred twenty-three".