23409535 has 8 divisors (see below), whose sum is σ = 28209456. Its totient is φ = 18648960.

The previous prime is 23409523. The next prime is 23409541. The reversal of 23409535 is 53590432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23409535 - 2¹⁵ = 23376767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23409497 and 23409506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8509 + ... + 10918.

It is an arithmetic number, because the mean of its divisors is an integer number (3526182).

Almost surely, 2^23409535 is an apocalyptic number.

23409535 is a deficient number, since it is larger than the sum of its proper divisors (4799921).

23409535 is a wasteful number, since it uses less digits than its factorization.

23409535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19673.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 23409535 is about 4838.3401079296. The cubic root of 23409535 is about 286.0646951302.

Adding to 23409535 its reverse (53590432), we get a palindrome (76999967).

The spelling of 23409535 in words is "twenty-three million, four hundred nine thousand, five hundred thirty-five".