74418761 has 2 divisors, whose sum is σ = 74418762. Its totient is φ = 74418760.

The previous prime is 74418733. The next prime is 74418779. The reversal of 74418761 is 16781447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66324736 + 8094025 = 8144^2 + 2845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74418761 is a prime.

It is not a weakly prime, because it can be changed into another prime (74418161) 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, 37209380 + 37209381.

It is an arithmetic number, because the mean of its divisors is an integer number (37209381).

Almost surely, 2^74418761 is an apocalyptic number.

It is an amenable number.

74418761 is a deficient number, since it is larger than the sum of its proper divisors (1).

74418761 is an equidigital number, since it uses as much as digits as its factorization.

74418761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 38.

The square root of 74418761 is about 8626.6309182670. The cubic root of 74418761 is about 420.6240929648.

The spelling of 74418761 in words is "seventy-four million, four hundred eighteen thousand, seven hundred sixty-one".