74674609 has 2 divisors, whose sum is σ = 74674610. Its totient is φ = 74674608.

The previous prime is 74674559. The next prime is 74674619. The reversal of 74674609 is 90647647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63250209 + 11424400 = 7953^2 + 3380^2 .

It is a cyclic number.

It is not a de Polignac number, because 74674609 - 2⁹ = 74674097 is a prime.

It is not a weakly prime, because it can be changed into another prime (74674619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37337304 + 37337305.

It is an arithmetic number, because the mean of its divisors is an integer number (37337305).

Almost surely, 2^74674609 is an apocalyptic number.

It is an amenable number.

74674609 is a deficient number, since it is larger than the sum of its proper divisors (1).

74674609 is an equidigital number, since it uses as much as digits as its factorization.

74674609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 74674609 is about 8641.4471588965. The cubic root of 74674609 is about 421.1055698600.

The spelling of 74674609 in words is "seventy-four million, six hundred seventy-four thousand, six hundred nine".