74344217 has 2 divisors, whose sum is σ = 74344218. Its totient is φ = 74344216.

The previous prime is 74344187. The next prime is 74344219. The reversal of 74344217 is 71244347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63027721 + 11316496 = 7939^2 + 3364^2 .

It is a cyclic number.

It is not a de Polignac number, because 74344217 - 2⁸ = 74343961 is a prime.

Together with 74344219, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_4358129 and since 74344217 and 4358129 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (74344219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37172108 + 37172109.

It is an arithmetic number, because the mean of its divisors is an integer number (37172109).

Almost surely, 2^74344217 is an apocalyptic number.

It is an amenable number.

74344217 is a deficient number, since it is larger than the sum of its proper divisors (1).

74344217 is an equidigital number, since it uses as much as digits as its factorization.

74344217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 32.

The square root of 74344217 is about 8622.3092614450. The cubic root of 74344217 is about 420.4836020588.

The spelling of 74344217 in words is "seventy-four million, three hundred forty-four thousand, two hundred seventeen".