6401299 has 4 divisors (see below), whose sum is σ = 6777864. Its totient is φ = 6024736.

The previous prime is 6401293. The next prime is 6401303. The reversal of 6401299 is 9921046.

It is a happy number.

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 6401299 - 2⁵ = 6401267 is a prime.

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 6401299.

It is not an unprimeable number, because it can be changed into a prime (6401293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188257 + ... + 188290.

It is an arithmetic number, because the mean of its divisors is an integer number (1694466).

Almost surely, 2^6401299 is an apocalyptic number.

6401299 is a deficient number, since it is larger than the sum of its proper divisors (376565).

6401299 is a wasteful number, since it uses less digits than its factorization.

6401299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376564.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 6401299 is about 2530.0788525261. The cubic root of 6401299 is about 185.6761137945.

The spelling of 6401299 in words is "six million, four hundred one thousand, two hundred ninety-nine".