74024789 has 2 divisors, whose sum is σ = 74024790. Its totient is φ = 74024788.

The previous prime is 74024777. The next prime is 74024861. The reversal of 74024789 is 98742047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37724164 + 36300625 = 6142^2 + 6025^2 .

It is an emirp because it is prime and its reverse (98742047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74024789 - 2⁴ = 74024773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74024719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37012394 + 37012395.

It is an arithmetic number, because the mean of its divisors is an integer number (37012395).

Almost surely, 2^74024789 is an apocalyptic number.

It is an amenable number.

74024789 is a deficient number, since it is larger than the sum of its proper divisors (1).

74024789 is an equidigital number, since it uses as much as digits as its factorization.

74024789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 74024789 is about 8603.7659777565. The cubic root of 74024789 is about 419.8805196797.

The spelling of 74024789 in words is "seventy-four million, twenty-four thousand, seven hundred eighty-nine".