74350247 has 2 divisors, whose sum is σ = 74350248. Its totient is φ = 74350246.

The previous prime is 74350223. The next prime is 74350253. The reversal of 74350247 is 74205347.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74350247 is a prime.

It is a super-2 number, since 2×74350247² = 11055918457922018, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74350217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37175123 + 37175124.

It is an arithmetic number, because the mean of its divisors is an integer number (37175124).

Almost surely, 2^74350247 is an apocalyptic number.

74350247 is a deficient number, since it is larger than the sum of its proper divisors (1).

74350247 is an equidigital number, since it uses as much as digits as its factorization.

74350247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 74350247 is about 8622.6589286600. The cubic root of 74350247 is about 420.4949701143.

The spelling of 74350247 in words is "seventy-four million, three hundred fifty thousand, two hundred forty-seven".