19472863 has 2 divisors, whose sum is σ = 19472864. Its totient is φ = 19472862.

The previous prime is 19472857. The next prime is 19472903. The reversal of 19472863 is 36827491.

It is an a-pointer prime, because the next prime (19472903) can be obtained adding 19472863 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19472863 - 2¹³ = 19464671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19470863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9736431 + 9736432.

It is an arithmetic number, because the mean of its divisors is an integer number (9736432).

Almost surely, 2^19472863 is an apocalyptic number.

19472863 is a deficient number, since it is larger than the sum of its proper divisors (1).

19472863 is an equidigital number, since it uses as much as digits as its factorization.

19472863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The square root of 19472863 is about 4412.8067032219. The cubic root of 19472863 is about 269.0357143149.

The spelling of 19472863 in words is "nineteen million, four hundred seventy-two thousand, eight hundred sixty-three".