74027881 has 2 divisors, whose sum is σ = 74027882. Its totient is φ = 74027880.

The previous prime is 74027839. The next prime is 74027887. The reversal of 74027881 is 18872047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71825625 + 2202256 = 8475^2 + 1484^2 .

It is a cyclic number.

It is not a de Polignac number, because 74027881 - 2⁷ = 74027753 is a prime.

It is a super-2 number, since 2×74027881² = 10960254330700322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74027881.

It is not a weakly prime, because it can be changed into another prime (74027887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37013940 + 37013941.

It is an arithmetic number, because the mean of its divisors is an integer number (37013941).

Almost surely, 2^74027881 is an apocalyptic number.

It is an amenable number.

74027881 is a deficient number, since it is larger than the sum of its proper divisors (1).

74027881 is an equidigital number, since it uses as much as digits as its factorization.

74027881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 74027881 is about 8603.9456646355. The cubic root of 74027881 is about 419.8863657056.

The spelling of 74027881 in words is "seventy-four million, twenty-seven thousand, eight hundred eighty-one".