74739799 has 2 divisors, whose sum is σ = 74739800. Its totient is φ = 74739798.

The previous prime is 74739781. The next prime is 74739869. The reversal of 74739799 is 99793747.

It is a weak prime.

It is an emirp because it is prime and its reverse (99793747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74739799 - 2⁷ = 74739671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74739739) 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, 37369899 + 37369900.

It is an arithmetic number, because the mean of its divisors is an integer number (37369900).

Almost surely, 2^74739799 is an apocalyptic number.

74739799 is a deficient number, since it is larger than the sum of its proper divisors (1).

74739799 is an equidigital number, since it uses as much as digits as its factorization.

74739799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000564, while the sum is 55.

The square root of 74739799 is about 8645.2182737048. The cubic root of 74739799 is about 421.2280741845.

The spelling of 74739799 in words is "seventy-four million, seven hundred thirty-nine thousand, seven hundred ninety-nine".