24878947 has 2 divisors, whose sum is σ = 24878948. Its totient is φ = 24878946.

The previous prime is 24878927. The next prime is 24878969. The reversal of 24878947 is 74987842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 24878947 - 2¹⁵ = 24846179 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 24878947.

It is not a weakly prime, because it can be changed into another prime (24878927) 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, 12439473 + 12439474.

It is an arithmetic number, because the mean of its divisors is an integer number (12439474).

Almost surely, 2^24878947 is an apocalyptic number.

24878947 is a deficient number, since it is larger than the sum of its proper divisors (1).

24878947 is an equidigital number, since it uses as much as digits as its factorization.

24878947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 49.

The square root of 24878947 is about 4987.8800105857. The cubic root of 24878947 is about 291.9290618633.

The spelling of 24878947 in words is "twenty-four million, eight hundred seventy-eight thousand, nine hundred forty-seven".