74974349 has 2 divisors, whose sum is σ = 74974350. Its totient is φ = 74974348.

The previous prime is 74974343. The next prime is 74974351. The reversal of 74974349 is 94347947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72556324 + 2418025 = 8518^2 + 1555^2 .

It is an emirp because it is prime and its reverse (94347947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74974349 - 2⁸ = 74974093 is a prime.

It is a Sophie Germain prime.

Together with 74974351, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74974343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37487174 + 37487175.

It is an arithmetic number, because the mean of its divisors is an integer number (37487175).

Almost surely, 2^74974349 is an apocalyptic number.

It is an amenable number.

74974349 is a deficient number, since it is larger than the sum of its proper divisors (1).

74974349 is an equidigital number, since it uses as much as digits as its factorization.

74974349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 47.

The square root of 74974349 is about 8658.7729500201. The cubic root of 74974349 is about 421.6682496326.

The spelling of 74974349 in words is "seventy-four million, nine hundred seventy-four thousand, three hundred forty-nine".