24279949 has 2 divisors, whose sum is σ = 24279950. Its totient is φ = 24279948.

The previous prime is 24279947. The next prime is 24279977. The reversal of 24279949 is 94997242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21557449 + 2722500 = 4643^2 + 1650^2 .

It is a cyclic number.

It is not a de Polignac number, because 24279949 - 2¹ = 24279947 is a prime.

Together with 24279947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 24279899 and 24279908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24279943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12139974 + 12139975.

It is an arithmetic number, because the mean of its divisors is an integer number (12139975).

Almost surely, 2^24279949 is an apocalyptic number.

It is an amenable number.

24279949 is a deficient number, since it is larger than the sum of its proper divisors (1).

24279949 is an equidigital number, since it uses as much as digits as its factorization.

24279949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 24279949 is about 4927.4688228339. The cubic root of 24279949 is about 289.5671266790.

The spelling of 24279949 in words is "twenty-four million, two hundred seventy-nine thousand, nine hundred forty-nine".