6913623 has 4 divisors (see below), whose sum is σ = 9218168. Its totient is φ = 4609080.

The previous prime is 6913607. The next prime is 6913631. The reversal of 6913623 is 3263196.

It is a happy number.

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

It is not a de Polignac number, because 6913623 - 2⁴ = 6913607 is a prime.

It is a super-3 number, since 3×6913623³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6913603) 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, 1152268 + ... + 1152273.

It is an arithmetic number, because the mean of its divisors is an integer number (2304542).

Almost surely, 2^6913623 is an apocalyptic number.

6913623 is a deficient number, since it is larger than the sum of its proper divisors (2304545).

6913623 is a wasteful number, since it uses less digits than its factorization.

6913623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304544.

The product of its digits is 5832, while the sum is 30.

The square root of 6913623 is about 2629.3769223905. The cubic root of 6913623 is about 190.5030345133.

The spelling of 6913623 in words is "six million, nine hundred thirteen thousand, six hundred twenty-three".