74838443 has 2 divisors, whose sum is σ = 74838444. Its totient is φ = 74838442.

The previous prime is 74838377. The next prime is 74838451. The reversal of 74838443 is 34483847.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74838443 - 2⁸ = 74838187 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74838443.

It is not a weakly prime, because it can be changed into another prime (74834443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37419221 + 37419222.

It is an arithmetic number, because the mean of its divisors is an integer number (37419222).

Almost surely, 2^74838443 is an apocalyptic number.

74838443 is a deficient number, since it is larger than the sum of its proper divisors (1).

74838443 is an equidigital number, since it uses as much as digits as its factorization.

74838443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 41.

The square root of 74838443 is about 8650.9215116079. The cubic root of 74838443 is about 421.4133095197.

It can be divided in two parts, 7483844 and 3, that added together give a palindrome (7483847).

The spelling of 74838443 in words is "seventy-four million, eight hundred thirty-eight thousand, four hundred forty-three".