6433923 has 4 divisors (see below), whose sum is σ = 8578568. Its totient is φ = 4289280.

The previous prime is 6433909. The next prime is 6433927. The reversal of 6433923 is 3293346.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-6433923 is a prime.

It is a D-number.

It is a Duffinian number.

6433923 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6433927) 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, 1072318 + ... + 1072323.

It is an arithmetic number, because the mean of its divisors is an integer number (2144642).

Almost surely, 2^6433923 is an apocalyptic number.

6433923 is a deficient number, since it is larger than the sum of its proper divisors (2144645).

6433923 is a wasteful number, since it uses less digits than its factorization.

6433923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144644.

The product of its digits is 11664, while the sum is 30.

The square root of 6433923 is about 2536.5178887601. The cubic root of 6433923 is about 185.9910100869.

The spelling of 6433923 in words is "six million, four hundred thirty-three thousand, nine hundred twenty-three".