23605021 has 8 divisors (see below), whose sum is σ = 25949088. Its totient is φ = 21294000.

The previous prime is 23605009. The next prime is 23605033. The reversal of 23605021 is 12050632.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23605009) and next prime (23605033).

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

It is a cyclic number.

It is not a de Polignac number, because 23605021 - 2⁵ = 23604989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23605021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23605051) 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 7 ways as a sum of consecutive naturals, for example, 6750 + ... + 9631.

It is an arithmetic number, because the mean of its divisors is an integer number (3243636).

Almost surely, 2^23605021 is an apocalyptic number.

It is an amenable number.

23605021 is a deficient number, since it is larger than the sum of its proper divisors (2344067).

23605021 is a wasteful number, since it uses less digits than its factorization.

23605021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16523.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 23605021 is about 4858.4998713595. The cubic root of 23605021 is about 286.8587689913.

Adding to 23605021 its reverse (12050632), we get a palindrome (35655653).

It can be divided in two parts, 2360 and 5021, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 23605021 in words is "twenty-three million, six hundred five thousand, twenty-one".