619459423 has 4 divisors (see below), whose sum is σ = 675773928. Its totient is φ = 563144920.

The previous prime is 619459409. The next prime is 619459433. The reversal of 619459423 is 324954916.

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 619459423 - 2⁹ = 619458911 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 619459423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619459403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28157236 + ... + 28157257.

It is an arithmetic number, because the mean of its divisors is an integer number (168943482).

Almost surely, 2^619459423 is an apocalyptic number.

619459423 is a deficient number, since it is larger than the sum of its proper divisors (56314505).

619459423 is a wasteful number, since it uses less digits than its factorization.

619459423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56314504.

The product of its digits is 233280, while the sum is 43.

The square root of 619459423 is about 24888.9417814418. The cubic root of 619459423 is about 852.4540031311.

The spelling of 619459423 in words is "six hundred nineteen million, four hundred fifty-nine thousand, four hundred twenty-three".