1224079643 has 2 divisors, whose sum is σ = 1224079644. Its totient is φ = 1224079642.

The previous prime is 1224079627. The next prime is 1224079669. The reversal of 1224079643 is 3469704221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1224079643 - 2⁴ = 1224079627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1224079597 and 1224079606.

It is not a weakly prime, because it can be changed into another prime (1224079613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612039821 + 612039822.

It is an arithmetic number, because the mean of its divisors is an integer number (612039822).

Almost surely, 2^1224079643 is an apocalyptic number.

1224079643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224079643 is an equidigital number, since it uses as much as digits as its factorization.

1224079643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 1224079643 is about 34986.8495723750. The cubic root of 1224079643 is about 1069.7194486756.

The spelling of 1224079643 in words is "one billion, two hundred twenty-four million, seventy-nine thousand, six hundred forty-three".