74477873 has 2 divisors, whose sum is σ = 74477874. Its totient is φ = 74477872.

The previous prime is 74477857. The next prime is 74477911. The reversal of 74477873 is 37877447.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61575409 + 12902464 = 7847^2 + 3592^2 .

It is a cyclic number.

It is not a de Polignac number, because 74477873 - 2⁴ = 74477857 is a prime.

It is not a weakly prime, because it can be changed into another prime (74477813) 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, 37238936 + 37238937.

It is an arithmetic number, because the mean of its divisors is an integer number (37238937).

Almost surely, 2^74477873 is an apocalyptic number.

It is an amenable number.

74477873 is a deficient number, since it is larger than the sum of its proper divisors (1).

74477873 is an equidigital number, since it uses as much as digits as its factorization.

74477873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 921984, while the sum is 47.

The square root of 74477873 is about 8630.0563729329. The cubic root of 74477873 is about 420.7354329490.

The spelling of 74477873 in words is "seventy-four million, four hundred seventy-seven thousand, eight hundred seventy-three".