6406023 has 16 divisors (see below), whose sum is σ = 9313920. Its totient is φ = 3892704.

The previous prime is 6405989. The next prime is 6406051. The reversal of 6406023 is 3206046.

It is not a de Polignac number, because 6406023 - 2⁸ = 6405767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2248 + ... + 4226.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

Almost surely, 2^6406023 is an apocalyptic number.

6406023 is a deficient number, since it is larger than the sum of its proper divisors (2907897).

6406023 is a wasteful number, since it uses less digits than its factorization.

6406023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 6406023 is about 2531.0122480936. The cubic root of 6406023 is about 185.7217773535.

The spelling of 6406023 in words is "six million, four hundred six thousand, twenty-three".