23678109 has 64 divisors (see below), whose sum is σ = 45158400. Its totient is φ = 11918016.

The previous prime is 23678107. The next prime is 23678147. The reversal of 23678109 is 90187632.

23678109 = T₂₃₉ + T₂₄₀ + ... + T₅₃₇.

It is not a de Polignac number, because 23678109 - 2¹ = 23678107 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23678107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56302 + ... + 56720.

It is an arithmetic number, because the mean of its divisors is an integer number (705600).

Almost surely, 2^23678109 is an apocalyptic number.

It is an amenable number.

23678109 is a deficient number, since it is larger than the sum of its proper divisors (21480291).

23678109 is a wasteful number, since it uses less digits than its factorization.

23678109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 465 counting only the distinct ones).

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

The square root of 23678109 is about 4866.0157213063. The cubic root of 23678109 is about 287.1545299650.

The spelling of 23678109 in words is "twenty-three million, six hundred seventy-eight thousand, one hundred nine".