74790481 has 2 divisors, whose sum is σ = 74790482. Its totient is φ = 74790480.

The previous prime is 74790439. The next prime is 74790493. The reversal of 74790481 is 18409747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74235456 + 555025 = 8616^2 + 745^2 .

It is an emirp because it is prime and its reverse (18409747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74790481 - 2⁹ = 74789969 is a prime.

It is a super-2 number, since 2×74790481² = 11187232096422722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74790421) 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, 37395240 + 37395241.

It is an arithmetic number, because the mean of its divisors is an integer number (37395241).

Almost surely, 2^74790481 is an apocalyptic number.

It is an amenable number.

74790481 is a deficient number, since it is larger than the sum of its proper divisors (1).

74790481 is an equidigital number, since it uses as much as digits as its factorization.

74790481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 74790481 is about 8648.1489927036. The cubic root of 74790481 is about 421.3232660268.

The spelling of 74790481 in words is "seventy-four million, seven hundred ninety thousand, four hundred eighty-one".