6413623 has 4 divisors (see below), whose sum is σ = 6419520. Its totient is φ = 6407728.

The previous prime is 6413609. The next prime is 6413651. The reversal of 6413623 is 3263146.

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: 3263146 = 2 ⋅1631573.

It is a cyclic number.

It is not a de Polignac number, because 6413623 - 2⁵ = 6413591 is a prime.

It is a super-2 number, since 2×6413623² = 82269119972258, 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 (6413653) 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, 790 + ... + 3667.

It is an arithmetic number, because the mean of its divisors is an integer number (1604880).

Almost surely, 2^6413623 is an apocalyptic number.

6413623 is a deficient number, since it is larger than the sum of its proper divisors (5897).

6413623 is a wasteful number, since it uses less digits than its factorization.

6413623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896.

The product of its digits is 2592, while the sum is 25.

The square root of 6413623 is about 2532.5131786429. The cubic root of 6413623 is about 185.7951940785.

Adding to 6413623 its reverse (3263146), we get a palindrome (9676769).

The spelling of 6413623 in words is "six million, four hundred thirteen thousand, six hundred twenty-three".