74226881 has 2 divisors, whose sum is σ = 74226882. Its totient is φ = 74226880.

The previous prime is 74226877. The next prime is 74226917. The reversal of 74226881 is 18862247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44622400 + 29604481 = 6680^2 + 5441^2 .

It is an emirp because it is prime and its reverse (18862247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74226881 - 2² = 74226877 is a prime.

It is a super-2 number, since 2×74226881² = 11019259725976322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74226281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37113440 + 37113441.

It is an arithmetic number, because the mean of its divisors is an integer number (37113441).

Almost surely, 2^74226881 is an apocalyptic number.

It is an amenable number.

74226881 is a deficient number, since it is larger than the sum of its proper divisors (1).

74226881 is an equidigital number, since it uses as much as digits as its factorization.

74226881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 38.

The square root of 74226881 is about 8615.5023649234. The cubic root of 74226881 is about 420.2622719404.

The spelling of 74226881 in words is "seventy-four million, two hundred twenty-six thousand, eight hundred eighty-one".