74993841 has 12 divisors (see below), whose sum is σ = 116657268. Its totient is φ = 46149984.

The previous prime is 74993833. The next prime is 74993843. The reversal of 74993841 is 14839947.

It can be written as a sum of positive squares in 2 ways, for example, as 21762225 + 53231616 = 4665^2 + 7296^2 .

It is not a de Polignac number, because 74993841 - 2³ = 74993833 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74993843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320370 + ... + 320603.

It is an arithmetic number, because the mean of its divisors is an integer number (9721439).

Almost surely, 2^74993841 is an apocalyptic number.

It is an amenable number.

74993841 is a deficient number, since it is larger than the sum of its proper divisors (41663427).

74993841 is a wasteful number, since it uses less digits than its factorization.

74993841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640992 (or 640989 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 74993841 is about 8659.8984405130. The cubic root of 74993841 is about 421.7047885531.

The spelling of 74993841 in words is "seventy-four million, nine hundred ninety-three thousand, eight hundred forty-one".