24897949 has 2 divisors, whose sum is σ = 24897950. Its totient is φ = 24897948.

The previous prime is 24897907. The next prime is 24897967. The reversal of 24897949 is 94979842.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21068100 + 3829849 = 4590^2 + 1957^2 .

It is a cyclic number.

It is not a de Polignac number, because 24897949 - 2⁹ = 24897437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24897896 and 24897905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24897149) 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 as a sum of consecutive naturals, namely, 12448974 + 12448975.

It is an arithmetic number, because the mean of its divisors is an integer number (12448975).

Almost surely, 2^24897949 is an apocalyptic number.

It is an amenable number.

24897949 is a deficient number, since it is larger than the sum of its proper divisors (1).

24897949 is an equidigital number, since it uses as much as digits as its factorization.

24897949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 52.

The square root of 24897949 is about 4989.7844642830. The cubic root of 24897949 is about 292.0033659773.

The spelling of 24897949 in words is "twenty-four million, eight hundred ninety-seven thousand, nine hundred forty-nine".