19486423 has 4 divisors (see below), whose sum is σ = 21257928. Its totient is φ = 17714920.

The previous prime is 19486421. The next prime is 19486513. The reversal of 19486423 is 32468491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19486423 - 2¹ = 19486421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19486421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885736 + ... + 885757.

It is an arithmetic number, because the mean of its divisors is an integer number (5314482).

Almost surely, 2^19486423 is an apocalyptic number.

19486423 is a deficient number, since it is larger than the sum of its proper divisors (1771505).

19486423 is a wasteful number, since it uses less digits than its factorization.

19486423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771504.

The product of its digits is 41472, while the sum is 37.

The square root of 19486423 is about 4414.3428729540. The cubic root of 19486423 is about 269.0981478293.

The spelling of 19486423 in words is "nineteen million, four hundred eighty-six thousand, four hundred twenty-three".