23894749 has 2 divisors, whose sum is σ = 23894750. Its totient is φ = 23894748.

The previous prime is 23894747. The next prime is 23894777. The reversal of 23894749 is 94749832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15657849 + 8236900 = 3957^2 + 2870^2 .

It is a cyclic number.

It is not a de Polignac number, because 23894749 - 2¹ = 23894747 is a prime.

Together with 23894747, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 23894699 and 23894708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23894747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11947374 + 11947375.

It is an arithmetic number, because the mean of its divisors is an integer number (11947375).

Almost surely, 2^23894749 is an apocalyptic number.

It is an amenable number.

23894749 is a deficient number, since it is larger than the sum of its proper divisors (1).

23894749 is an equidigital number, since it uses as much as digits as its factorization.

23894749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The square root of 23894749 is about 4888.2255471694. The cubic root of 23894749 is about 288.0276344689.

The spelling of 23894749 in words is "twenty-three million, eight hundred ninety-four thousand, seven hundred forty-nine".