23003507 has 4 divisors (see below), whose sum is σ = 23073336. Its totient is φ = 22933680.

The previous prime is 23003459. The next prime is 23003531. The reversal of 23003507 is 70530032.

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

It is a cyclic number.

It is not a de Polignac number, because 23003507 - 2¹² = 22999411 is a prime.

It is a super-2 number, since 2×23003507² = 1058322668598098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23003557) 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 3 ways as a sum of consecutive naturals, for example, 34418 + ... + 35079.

It is an arithmetic number, because the mean of its divisors is an integer number (5768334).

Almost surely, 2^23003507 is an apocalyptic number.

23003507 is a deficient number, since it is larger than the sum of its proper divisors (69829).

23003507 is an equidigital number, since it uses as much as digits as its factorization.

23003507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69828.

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 23003507 is about 4796.1971394012. The cubic root of 23003507 is about 284.4011515136.

Adding to 23003507 its reverse (70530032), we get a palindrome (93533539).

The spelling of 23003507 in words is "twenty-three million, three thousand, five hundred seven".