74684419 has 2 divisors, whose sum is σ = 74684420. Its totient is φ = 74684418.

The previous prime is 74684413. The next prime is 74684437. The reversal of 74684419 is 91448647.

It is a weak prime.

It is an emirp because it is prime and its reverse (91448647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74684419 - 2⁵ = 74684387 is a prime.

It is a super-2 number, since 2×74684419² = 11155524882735122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74684413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37342209 + 37342210.

It is an arithmetic number, because the mean of its divisors is an integer number (37342210).

Almost surely, 2^74684419 is an apocalyptic number.

74684419 is a deficient number, since it is larger than the sum of its proper divisors (1).

74684419 is an equidigital number, since it uses as much as digits as its factorization.

74684419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 43.

The square root of 74684419 is about 8642.0147535167. The cubic root of 74684419 is about 421.1240092592.

The spelling of 74684419 in words is "seventy-four million, six hundred eighty-four thousand, four hundred nineteen".