74354641 has 2 divisors, whose sum is σ = 74354642. Its totient is φ = 74354640.

The previous prime is 74354639. The next prime is 74354663. The reversal of 74354641 is 14645347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67305616 + 7049025 = 8204^2 + 2655^2 .

It is a cyclic number.

It is not a de Polignac number, because 74354641 - 2¹ = 74354639 is a prime.

It is a super-2 number, since 2×74354641² = 11057225276477762, which contains 22 as substring.

Together with 74354639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 74354597 and 74354606.

It is not a weakly prime, because it can be changed into another prime (74354681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37177320 + 37177321.

It is an arithmetic number, because the mean of its divisors is an integer number (37177321).

Almost surely, 2^74354641 is an apocalyptic number.

It is an amenable number.

74354641 is a deficient number, since it is larger than the sum of its proper divisors (1).

74354641 is an equidigital number, since it uses as much as digits as its factorization.

74354641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 74354641 is about 8622.9137186916. The cubic root of 74354641 is about 420.5032535143.

Adding to 74354641 its reverse (14645347), we get a palindrome (88999988).

The spelling of 74354641 in words is "seventy-four million, three hundred fifty-four thousand, six hundred forty-one".