8343919 has 4 divisors (see below), whose sum is σ = 8390200. Its totient is φ = 8297640.

The previous prime is 8343911. The next prime is 8343941. The reversal of 8343919 is 9193438.

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 8343919 - 2³ = 8343911 is a prime.

It is a super-2 number, since 2×8343919² = 139241968557122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8343911) 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, 22869 + ... + 23230.

It is an arithmetic number, because the mean of its divisors is an integer number (2097550).

Almost surely, 2^8343919 is an apocalyptic number.

8343919 is a deficient number, since it is larger than the sum of its proper divisors (46281).

8343919 is a wasteful number, since it uses less digits than its factorization.

8343919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46280.

The product of its digits is 23328, while the sum is 37.

The square root of 8343919 is about 2888.5842553057. The cubic root of 8343919 is about 202.8258757460.

It can be divided in two parts, 834 and 3919, that added together give a triangular number (4753 = T₉₇).

The spelling of 8343919 in words is "eight million, three hundred forty-three thousand, nine hundred nineteen".