623505326 has 4 divisors (see below), whose sum is σ = 935257992. Its totient is φ = 311752662.

The previous prime is 623505313. The next prime is 623505329.

623505326 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 623505292 and 623505301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623505329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155876330 + ... + 155876333.

It is an arithmetic number, because the mean of its divisors is an integer number (233814498).

Almost surely, 2^623505326 is an apocalyptic number.

623505326 is a deficient number, since it is larger than the sum of its proper divisors (311752666).

623505326 is a wasteful number, since it uses less digits than its factorization.

623505326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311752665.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 623505326 is about 24970.0886261943. The cubic root of 623505326 is about 854.3058675451.

It can be divided in two parts, 62350 and 5326, that added together give a palindrome (67676).

The spelling of 623505326 in words is "six hundred twenty-three million, five hundred five thousand, three hundred twenty-six".