23189794 has 4 divisors (see below), whose sum is σ = 34784694. Its totient is φ = 11594896.

The previous prime is 23189759. The next prime is 23189797. The reversal of 23189794 is 49798132.

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

It can be written as a sum of positive squares in only one way, i.e., 16362025 + 6827769 = 4045^2 + 2613^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23189794.

It is not an unprimeable number, because it can be changed into a prime (23189797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5797447 + ... + 5797450.

Almost surely, 2^23189794 is an apocalyptic number.

23189794 is a deficient number, since it is larger than the sum of its proper divisors (11594900).

23189794 is a wasteful number, since it uses less digits than its factorization.

23189794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11594899.

The product of its digits is 108864, while the sum is 43.

The square root of 23189794 is about 4815.5782622651. The cubic root of 23189794 is about 285.1668008909.

It can be divided in two parts, 2 and 3189794, that added together give a square (3189796 = 1786²).

The spelling of 23189794 in words is "twenty-three million, one hundred eighty-nine thousand, seven hundred ninety-four".