74225887 has 2 divisors, whose sum is σ = 74225888. Its totient is φ = 74225886.

The previous prime is 74225813. The next prime is 74225903. The reversal of 74225887 is 78852247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74225887 - 2¹¹ = 74223839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74225087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37112943 + 37112944.

It is an arithmetic number, because the mean of its divisors is an integer number (37112944).

Almost surely, 2^74225887 is an apocalyptic number.

74225887 is a deficient number, since it is larger than the sum of its proper divisors (1).

74225887 is an equidigital number, since it uses as much as digits as its factorization.

74225887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 250880, while the sum is 43.

The square root of 74225887 is about 8615.4446780187. Note that the first 3 decimals coincide. The cubic root of 74225887 is about 420.2603959688.

The spelling of 74225887 in words is "seventy-four million, two hundred twenty-five thousand, eight hundred eighty-seven".