6406299 has 6 divisors (see below), whose sum is σ = 9253556. Its totient is φ = 4270860.

The previous prime is 6406247. The next prime is 6406307. The reversal of 6406299 is 9926046.

6406299 is a `hidden beast` number, since 640 + 6 + 2 + 9 + 9 = 666.

It is not a de Polignac number, because 6406299 - 2¹² = 6402203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6406219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355897 + ... + 355914.

Almost surely, 2^6406299 is an apocalyptic number.

6406299 is a deficient number, since it is larger than the sum of its proper divisors (2847257).

6406299 is a wasteful number, since it uses less digits than its factorization.

6406299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711817 (or 711814 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 6406299 is about 2531.0667711461. The cubic root of 6406299 is about 185.7244445556.

The spelling of 6406299 in words is "six million, four hundred six thousand, two hundred ninety-nine".