23009765 has 8 divisors (see below), whose sum is σ = 27646080. Its totient is φ = 18384912.

The previous prime is 23009747. The next prime is 23009771. The reversal of 23009765 is 56790032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23009765 is a prime.

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, 2456 + ... + 7214.

It is an arithmetic number, because the mean of its divisors is an integer number (3455760).

Almost surely, 2^23009765 is an apocalyptic number.

It is an amenable number.

23009765 is a deficient number, since it is larger than the sum of its proper divisors (4636315).

23009765 is an equidigital number, since it uses as much as digits as its factorization.

23009765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5731.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 23009765 is about 4796.8494869028. The cubic root of 23009765 is about 284.4269391908.

Adding to 23009765 its reverse (56790032), we get a palindrome (79799797).

The spelling of 23009765 in words is "twenty-three million, nine thousand, seven hundred sixty-five".