6299389 has 4 divisors (see below), whose sum is σ = 6385756. Its totient is φ = 6213024.

The previous prime is 6299387. The next prime is 6299413. The reversal of 6299389 is 9839926.

6299389 = 257² + 258² + ... + 329².

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1304164 + 4995225 = 1142^2 + 2235^2 .

It is a cyclic number.

It is not a de Polignac number, because 6299389 - 2¹ = 6299387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6299383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43074 + ... + 43219.

It is an arithmetic number, because the mean of its divisors is an integer number (1596439).

Almost surely, 2^6299389 is an apocalyptic number.

It is an amenable number.

6299389 is a deficient number, since it is larger than the sum of its proper divisors (86367).

6299389 is an equidigital number, since it uses as much as digits as its factorization.

6299389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86366.

The product of its digits is 209952, while the sum is 46.

The square root of 6299389 is about 2509.8583625376. The cubic root of 6299389 is about 184.6855041379.

The spelling of 6299389 in words is "six million, two hundred ninety-nine thousand, three hundred eighty-nine".