623087109 has 12 divisors (see below), whose sum is σ = 904540000. Its totient is φ = 413302824.

The previous prime is 623087107. The next prime is 623087119. The reversal of 623087109 is 901780326.

It is not a de Polignac number, because 623087109 - 2¹ = 623087107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623087107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172159 + ... + 175740.

Almost surely, 2^623087109 is an apocalyptic number.

It is an amenable number.

623087109 is a deficient number, since it is larger than the sum of its proper divisors (281452891).

623087109 is a wasteful number, since it uses less digits than its factorization.

623087109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348104 (or 348101 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 623087109 is about 24961.7128619011. The cubic root of 623087109 is about 854.1148159026.

It can be divided in two parts, 6230 and 87109, that added together give a palindrome (93339).

The spelling of 623087109 in words is "six hundred twenty-three million, eighty-seven thousand, one hundred nine".