74674729 has 2 divisors, whose sum is σ = 74674730. Its totient is φ = 74674728.

The previous prime is 74674709. The next prime is 74674751. The reversal of 74674729 is 92747647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68095504 + 6579225 = 8252^2 + 2565^2 .

It is a cyclic number.

It is not a de Polignac number, because 74674729 - 2¹⁵ = 74641961 is a prime.

It is not a weakly prime, because it can be changed into another prime (74674709) 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, 37337364 + 37337365.

It is an arithmetic number, because the mean of its divisors is an integer number (37337365).

Almost surely, 2^74674729 is an apocalyptic number.

It is an amenable number.

74674729 is a deficient number, since it is larger than the sum of its proper divisors (1).

74674729 is an equidigital number, since it uses as much as digits as its factorization.

74674729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 46.

The square root of 74674729 is about 8641.4541021752. The cubic root of 74674729 is about 421.1057954282.

The spelling of 74674729 in words is "seventy-four million, six hundred seventy-four thousand, seven hundred twenty-nine".