1223486947 has 2 divisors, whose sum is σ = 1223486948. Its totient is φ = 1223486946.

The previous prime is 1223486861. The next prime is 1223486963. The reversal of 1223486947 is 7496843221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1223486947 - 2⁷ = 1223486819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223486897 and 1223486906.

It is not a weakly prime, because it can be changed into another prime (1223486977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611743473 + 611743474.

It is an arithmetic number, because the mean of its divisors is an integer number (611743474).

Almost surely, 2^1223486947 is an apocalyptic number.

1223486947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223486947 is an equidigital number, since it uses as much as digits as its factorization.

1223486947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The square root of 1223486947 is about 34978.3782785880. The cubic root of 1223486947 is about 1069.5467690629.

The spelling of 1223486947 in words is "one billion, two hundred twenty-three million, four hundred eighty-six thousand, nine hundred forty-seven".