74221841 has 2 divisors, whose sum is σ = 74221842. Its totient is φ = 74221840.

The previous prime is 74221799. The next prime is 74221853. The reversal of 74221841 is 14812247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73891216 + 330625 = 8596^2 + 575^2 .

It is a cyclic number.

It is not a de Polignac number, because 74221841 - 2¹⁴ = 74205457 is a prime.

It is not a weakly prime, because it can be changed into another prime (74241841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37110920 + 37110921.

It is an arithmetic number, because the mean of its divisors is an integer number (37110921).

Almost surely, 2^74221841 is an apocalyptic number.

It is an amenable number.

74221841 is a deficient number, since it is larger than the sum of its proper divisors (1).

74221841 is an equidigital number, since it uses as much as digits as its factorization.

74221841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 29.

The square root of 74221841 is about 8615.2098639557. The cubic root of 74221841 is about 420.2527597989.

The spelling of 74221841 in words is "seventy-four million, two hundred twenty-one thousand, eight hundred forty-one".