23047615 has 4 divisors (see below), whose sum is σ = 27657144. Its totient is φ = 18438088.

The previous prime is 23047543. The next prime is 23047637. The reversal of 23047615 is 51674032.

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 23047615 - 2¹⁹ = 22523327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2304757 + ... + 2304766.

It is an arithmetic number, because the mean of its divisors is an integer number (6914286).

Almost surely, 2^23047615 is an apocalyptic number.

23047615 is a deficient number, since it is larger than the sum of its proper divisors (4609529).

23047615 is an equidigital number, since it uses as much as digits as its factorization.

23047615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4609528.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 23047615 is about 4800.7931636345. The cubic root of 23047615 is about 284.5828101451.

The spelling of 23047615 in words is "twenty-three million, forty-seven thousand, six hundred fifteen".