74444471 has 2 divisors, whose sum is σ = 74444472. Its totient is φ = 74444470.

The previous prime is 74444449. The next prime is 74444473. The reversal of 74444471 is 17444447.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74444471 is a prime.

It is a super-3 number, since 3×74444471³ (a number of 25 digits) contains 333 as substring.

Together with 74444473, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74444473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37222235 + 37222236.

It is an arithmetic number, because the mean of its divisors is an integer number (37222236).

Almost surely, 2^74444471 is an apocalyptic number.

74444471 is a deficient number, since it is larger than the sum of its proper divisors (1).

74444471 is an equidigital number, since it uses as much as digits as its factorization.

74444471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50176, while the sum is 35.

The square root of 74444471 is about 8628.1209425923. The cubic root of 74444471 is about 420.6725260936.

The spelling of 74444471 in words is "seventy-four million, four hundred forty-four thousand, four hundred seventy-one".