23313447 has 16 divisors (see below), whose sum is σ = 34720000. Its totient is φ = 15460632.

The previous prime is 23313431. The next prime is 23313449. The reversal of 23313447 is 74431332.

It is not a de Polignac number, because 23313447 - 2⁴ = 23313431 is a prime.

It is a super-2 number, since 2×23313447² = 1087033622043618, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23313447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3204 + ... + 7542.

It is an arithmetic number, because the mean of its divisors is an integer number (2170000).

Almost surely, 2^23313447 is an apocalyptic number.

23313447 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23313447 is a deficient number, since it is larger than the sum of its proper divisors (11406553).

23313447 is a wasteful number, since it uses less digits than its factorization.

23313447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547 (or 4541 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 23313447 is about 4828.4000455637. The cubic root of 23313447 is about 285.6727596910.

Adding to 23313447 its reverse (74431332), we get a palindrome (97744779).

It can be divided in two parts, 2331 and 3447, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 23313447 in words is "twenty-three million, three hundred thirteen thousand, four hundred forty-seven".