19341923 has 4 divisors (see below), whose sum is σ = 19965888. Its totient is φ = 18717960.

The previous prime is 19341913. The next prime is 19341947. The reversal of 19341923 is 32914391.

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 19341923 - 2⁸ = 19341667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19341923.

It is not an unprimeable number, because it can be changed into a prime (19341913) 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 in 3 ways as a sum of consecutive naturals, for example, 311936 + ... + 311997.

It is an arithmetic number, because the mean of its divisors is an integer number (4991472).

Almost surely, 2^19341923 is an apocalyptic number.

19341923 is a deficient number, since it is larger than the sum of its proper divisors (623965).

19341923 is an equidigital number, since it uses as much as digits as its factorization.

19341923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623964.

The product of its digits is 5832, while the sum is 32.

The square root of 19341923 is about 4397.9453157128. The cubic root of 19341923 is about 268.4313383332.

The spelling of 19341923 in words is "nineteen million, three hundred forty-one thousand, nine hundred twenty-three".