74820481 has 2 divisors, whose sum is σ = 74820482. Its totient is φ = 74820480.

The previous prime is 74820419. The next prime is 74820511. The reversal of 74820481 is 18402847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74114881 + 705600 = 8609^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 74820481 - 2⁷ = 74820353 is a prime.

It is a super-2 number, since 2×74820481² = 11196208754142722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74820881) 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, 37410240 + 37410241.

It is an arithmetic number, because the mean of its divisors is an integer number (37410241).

Almost surely, 2^74820481 is an apocalyptic number.

It is an amenable number.

74820481 is a deficient number, since it is larger than the sum of its proper divisors (1).

74820481 is an equidigital number, since it uses as much as digits as its factorization.

74820481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 74820481 is about 8649.8832940104. The cubic root of 74820481 is about 421.3795923051.

The spelling of 74820481 in words is "seventy-four million, eight hundred twenty thousand, four hundred eighty-one".