19268947 has 2 divisors, whose sum is σ = 19268948. Its totient is φ = 19268946.

The previous prime is 19268941. The next prime is 19268957. The reversal of 19268947 is 74986291.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19268947 - 2⁷ = 19268819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19268897 and 19268906.

It is not a weakly prime, because it can be changed into another prime (19268941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9634473 + 9634474.

It is an arithmetic number, because the mean of its divisors is an integer number (9634474).

Almost surely, 2^19268947 is an apocalyptic number.

19268947 is a deficient number, since it is larger than the sum of its proper divisors (1).

19268947 is an equidigital number, since it uses as much as digits as its factorization.

19268947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 19268947 is about 4389.6408736934. The cubic root of 19268947 is about 268.0933206976.

The spelling of 19268947 in words is "nineteen million, two hundred sixty-eight thousand, nine hundred forty-seven".