23047865 has 8 divisors (see below), whose sum is σ = 27683208. Its totient is φ = 18421120.

The previous prime is 23047859. The next prime is 23047873. The reversal of 23047865 is 56874032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2725801 + 20322064 = 1651^2 + 4508^2 .

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

It is not a de Polignac number, because 23047865 - 2¹⁰ = 23046841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9629 + ... + 11781.

It is an arithmetic number, because the mean of its divisors is an integer number (3460401).

Almost surely, 2^23047865 is an apocalyptic number.

It is an amenable number.

23047865 is a deficient number, since it is larger than the sum of its proper divisors (4635343).

23047865 is a wasteful number, since it uses less digits than its factorization.

23047865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4299.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 23047865 is about 4800.8192009281. The cubic root of 23047865 is about 284.5838391083.

The spelling of 23047865 in words is "twenty-three million, forty-seven thousand, eight hundred sixty-five".