6299989 has 4 divisors (see below), whose sum is σ = 6517260. Its totient is φ = 6082720.

The previous prime is 6299987. The next prime is 6300011. The reversal of 6299989 is 9899926.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9899926 = 2 ⋅4949963.

It can be written as a sum of positive squares in 2 ways, for example, as 2907025 + 3392964 = 1705^2 + 1842^2 .

It is a cyclic number.

It is not a de Polignac number, because 6299989 - 2¹ = 6299987 is a prime.

It is a super-2 number, since 2×6299989² = 79379722800242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6299983) 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, 108592 + ... + 108649.

It is an arithmetic number, because the mean of its divisors is an integer number (1629315).

Almost surely, 2^6299989 is an apocalyptic number.

It is an amenable number.

6299989 is a deficient number, since it is larger than the sum of its proper divisors (217271).

6299989 is a wasteful number, since it uses less digits than its factorization.

6299989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217270.

The product of its digits is 629856, while the sum is 52.

The square root of 6299989 is about 2509.9778883488. The cubic root of 6299989 is about 184.6913675523.

The spelling of 6299989 in words is "six million, two hundred ninety-nine thousand, nine hundred eighty-nine".