74643707 has 2 divisors, whose sum is σ = 74643708. Its totient is φ = 74643706.

The previous prime is 74643659. The next prime is 74643733. The reversal of 74643707 is 70734647.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74643707 - 2¹² = 74639611 is a prime.

It is not a weakly prime, because it can be changed into another prime (74643757) 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, 37321853 + 37321854.

It is an arithmetic number, because the mean of its divisors is an integer number (37321854).

Almost surely, 2^74643707 is an apocalyptic number.

74643707 is a deficient number, since it is larger than the sum of its proper divisors (1).

74643707 is an equidigital number, since it uses as much as digits as its factorization.

74643707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 38.

The square root of 74643707 is about 8639.6589631767. The cubic root of 74643707 is about 421.0474742551.

The spelling of 74643707 in words is "seventy-four million, six hundred forty-three thousand, seven hundred seven".