23953047 has 4 divisors (see below), whose sum is σ = 31937400. Its totient is φ = 15968696.

The previous prime is 23953009. The next prime is 23953067. The reversal of 23953047 is 74035932.

It is a happy number.

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 23953047 - 2⁷ = 23952919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23952999 and 23953017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23953067) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3992172 + ... + 3992177.

It is an arithmetic number, because the mean of its divisors is an integer number (7984350).

Almost surely, 2^23953047 is an apocalyptic number.

23953047 is a deficient number, since it is larger than the sum of its proper divisors (7984353).

23953047 is an equidigital number, since it uses as much as digits as its factorization.

23953047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7984352.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 23953047 is about 4894.1850189792. The cubic root of 23953047 is about 288.2616858595.

Adding to 23953047 its reverse (74035932), we get a palindrome (97988979).

The spelling of 23953047 in words is "twenty-three million, nine hundred fifty-three thousand, forty-seven".