619343999 has 4 divisors (see below), whose sum is σ = 636083064. Its totient is φ = 602604936.

The previous prime is 619343953. The next prime is 619344029. The reversal of 619343999 is 999343916.

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 619343999 - 2¹⁶ = 619278463 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 619343999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (619343939) 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, 8369477 + ... + 8369550.

It is an arithmetic number, because the mean of its divisors is an integer number (159020766).

Almost surely, 2^619343999 is an apocalyptic number.

619343999 is a deficient number, since it is larger than the sum of its proper divisors (16739065).

619343999 is a wasteful number, since it uses less digits than its factorization.

619343999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16739064.

The product of its digits is 1417176, while the sum is 53.

The square root of 619343999 is about 24886.6228926305. The cubic root of 619343999 is about 852.4010538665.

The spelling of 619343999 in words is "six hundred nineteen million, three hundred forty-three thousand, nine hundred ninety-nine".