23280949 has 2 divisors, whose sum is σ = 23280950. Its totient is φ = 23280948.

The previous prime is 23280923. The next prime is 23280967. The reversal of 23280949 is 94908232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23280625 + 324 = 4825^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 23280949 - 2¹¹ = 23278901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23280449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11640474 + 11640475.

It is an arithmetic number, because the mean of its divisors is an integer number (11640475).

Almost surely, 2^23280949 is an apocalyptic number.

It is an amenable number.

23280949 is a deficient number, since it is larger than the sum of its proper divisors (1).

23280949 is an equidigital number, since it uses as much as digits as its factorization.

23280949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 23280949 is about 4825.0335750127. The cubic root of 23280949 is about 285.5399592171.

The spelling of 23280949 in words is "twenty-three million, two hundred eighty thousand, nine hundred forty-nine".