6623299 has 4 divisors (see below), whose sum is σ = 6628720. Its totient is φ = 6617880.

The previous prime is 6623297. The next prime is 6623303. The reversal of 6623299 is 9923266.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9923266 = 2 ⋅4961633.

It is a cyclic number.

It is not a de Polignac number, because 6623299 - 2¹ = 6623297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6623297) 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, 82 + ... + 3640.

It is an arithmetic number, because the mean of its divisors is an integer number (1657180).

Almost surely, 2^6623299 is an apocalyptic number.

6623299 is a deficient number, since it is larger than the sum of its proper divisors (5421).

6623299 is a wasteful number, since it uses less digits than its factorization.

6623299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5420.

The product of its digits is 34992, while the sum is 37.

The square root of 6623299 is about 2573.5770825837. The cubic root of 6623299 is about 187.7982122671.

The spelling of 6623299 in words is "six million, six hundred twenty-three thousand, two hundred ninety-nine".