6406203 has 4 divisors (see below), whose sum is σ = 8541608. Its totient is φ = 4270800.

The previous prime is 6406199. The next prime is 6406219. The reversal of 6406203 is 3026046.

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

It is not a de Polignac number, because 6406203 - 2² = 6406199 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6406203.

It is not an unprimeable number, because it can be changed into a prime (6401203) 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, 1067698 + ... + 1067703.

It is an arithmetic number, because the mean of its divisors is an integer number (2135402).

Almost surely, 2^6406203 is an apocalyptic number.

6406203 is a deficient number, since it is larger than the sum of its proper divisors (2135405).

6406203 is a wasteful number, since it uses less digits than its factorization.

6406203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135404.

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

The square root of 6406203 is about 2531.0478067393. The cubic root of 6406203 is about 185.7235168418.

The spelling of 6406203 in words is "six million, four hundred six thousand, two hundred three".