6431923 has 4 divisors (see below), whose sum is σ = 6460240. Its totient is φ = 6403608.

The previous prime is 6431891. The next prime is 6431951. The reversal of 6431923 is 3291346.

6431923 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6431923 - 2⁵ = 6431891 is a prime.

It is a Duffinian number.

6431923 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6431891 and 6431900.

It is not an unprimeable number, because it can be changed into a prime (6431963) 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, 13815 + ... + 14272.

It is an arithmetic number, because the mean of its divisors is an integer number (1615060).

Almost surely, 2^6431923 is an apocalyptic number.

6431923 is a deficient number, since it is larger than the sum of its proper divisors (28317).

6431923 is a wasteful number, since it uses less digits than its factorization.

6431923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28316.

The product of its digits is 3888, while the sum is 28.

The square root of 6431923 is about 2536.1236168610. The cubic root of 6431923 is about 185.9717361763.

The spelling of 6431923 in words is "six million, four hundred thirty-one thousand, nine hundred twenty-three".