74744377 has 2 divisors, whose sum is σ = 74744378. Its totient is φ = 74744376.

The previous prime is 74744311. The next prime is 74744389. The reversal of 74744377 is 77344747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39175081 + 35569296 = 6259^2 + 5964^2 .

It is a cyclic number.

It is not a de Polignac number, because 74744377 - 2¹¹ = 74742329 is a prime.

It is not a weakly prime, because it can be changed into another prime (74742377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37372188 + 37372189.

It is an arithmetic number, because the mean of its divisors is an integer number (37372189).

Almost surely, 2^74744377 is an apocalyptic number.

It is an amenable number.

74744377 is a deficient number, since it is larger than the sum of its proper divisors (1).

74744377 is an equidigital number, since it uses as much as digits as its factorization.

74744377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 460992, while the sum is 43.

The square root of 74744377 is about 8645.4830402934. The cubic root of 74744377 is about 421.2366744340.

The spelling of 74744377 in words is "seventy-four million, seven hundred forty-four thousand, three hundred seventy-seven".