74382761 has 2 divisors, whose sum is σ = 74382762. Its totient is φ = 74382760.

The previous prime is 74382743. The next prime is 74382773. The reversal of 74382761 is 16728347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45427600 + 28955161 = 6740^2 + 5381^2 .

It is an emirp because it is prime and its reverse (16728347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74382761 - 2⁶ = 74382697 is a prime.

It is not a weakly prime, because it can be changed into another prime (74382661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37191380 + 37191381.

It is an arithmetic number, because the mean of its divisors is an integer number (37191381).

Almost surely, 2^74382761 is an apocalyptic number.

It is an amenable number.

74382761 is a deficient number, since it is larger than the sum of its proper divisors (1).

74382761 is an equidigital number, since it uses as much as digits as its factorization.

74382761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 38.

The square root of 74382761 is about 8624.5441038933. The cubic root of 74382761 is about 420.5562565325.

The spelling of 74382761 in words is "seventy-four million, three hundred eighty-two thousand, seven hundred sixty-one".