74245427 has 2 divisors, whose sum is σ = 74245428. Its totient is φ = 74245426.

The previous prime is 74245411. The next prime is 74245439. The reversal of 74245427 is 72454247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74245427 - 2⁴ = 74245411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74245487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37122713 + 37122714.

It is an arithmetic number, because the mean of its divisors is an integer number (37122714).

Almost surely, 2^74245427 is an apocalyptic number.

74245427 is a deficient number, since it is larger than the sum of its proper divisors (1).

74245427 is an equidigital number, since it uses as much as digits as its factorization.

74245427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62720, while the sum is 35.

The square root of 74245427 is about 8616.5786133476. The cubic root of 74245427 is about 420.2972706495.

The spelling of 74245427 in words is "seventy-four million, two hundred forty-five thousand, four hundred twenty-seven".