6404299 has 4 divisors (see below), whose sum is σ = 6986520. Its totient is φ = 5822080.

The previous prime is 6404297. The next prime is 6404303. The reversal of 6404299 is 9924046.

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

It is not a de Polignac number, because 6404299 - 2¹ = 6404297 is a prime.

It is a Duffinian number.

6404299 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6404297) 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, 291094 + ... + 291115.

It is an arithmetic number, because the mean of its divisors is an integer number (1746630).

Almost surely, 2^6404299 is an apocalyptic number.

6404299 is a deficient number, since it is larger than the sum of its proper divisors (582221).

6404299 is a wasteful number, since it uses less digits than its factorization.

6404299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582220.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 6404299 is about 2530.6716499775. The cubic root of 6404299 is about 185.7051152699.

The spelling of 6404299 in words is "six million, four hundred four thousand, two hundred ninety-nine".