623916069 has 24 divisors (see below), whose sum is σ = 970234848. Its totient is φ = 355592160.

The previous prime is 623916061. The next prime is 623916107. The reversal of 623916069 is 960619326.

It is not a de Polignac number, because 623916069 - 2³ = 623916061 is a prime.

It is a super-2 number, since 2×623916069² = 778542522312825522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 623916069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623916061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53014 + ... + 63704.

It is an arithmetic number, because the mean of its divisors is an integer number (40426452).

Almost surely, 2^623916069 is an apocalyptic number.

It is an amenable number.

623916069 is a deficient number, since it is larger than the sum of its proper divisors (346318779).

623916069 is a wasteful number, since it uses less digits than its factorization.

623916069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105 (or 11098 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 623916069 is about 24978.3119725893. The cubic root of 623916069 is about 854.4934217461.

The spelling of 623916069 in words is "six hundred twenty-three million, nine hundred sixteen thousand, sixty-nine".