619324243 has 4 divisors (see below), whose sum is σ = 646251408. Its totient is φ = 592397080.

The previous prime is 619324207. The next prime is 619324253. The reversal of 619324243 is 342423916.

It is a happy number.

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 619324243 - 2¹³ = 619316051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 619324199 and 619324208.

It is not an unprimeable number, because it can be changed into a prime (619324253) 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, 13463548 + ... + 13463593.

It is an arithmetic number, because the mean of its divisors is an integer number (161562852).

Almost surely, 2^619324243 is an apocalyptic number.

619324243 is a deficient number, since it is larger than the sum of its proper divisors (26927165).

619324243 is a wasteful number, since it uses less digits than its factorization.

619324243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26927164.

The product of its digits is 31104, while the sum is 34.

The square root of 619324243 is about 24886.2259693992. The cubic root of 619324243 is about 852.3919903981.

The spelling of 619324243 in words is "six hundred nineteen million, three hundred twenty-four thousand, two hundred forty-three".