74487609 has 12 divisors (see below), whose sum is σ = 122963776. Its totient is φ = 42564312.

The previous prime is 74487607. The next prime is 74487617. The reversal of 74487609 is 90678447.

It is not a de Polignac number, because 74487609 - 2¹ = 74487607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74487607) 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 in 11 ways as a sum of consecutive naturals, for example, 591109 + ... + 591234.

Almost surely, 2^74487609 is an apocalyptic number.

It is an amenable number.

74487609 is a deficient number, since it is larger than the sum of its proper divisors (48476167).

74487609 is a wasteful number, since it uses less digits than its factorization.

74487609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182356 (or 1182353 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 74487609 is about 8630.6204296099. The cubic root of 74487609 is about 420.7537654708.

The spelling of 74487609 in words is "seventy-four million, four hundred eighty-seven thousand, six hundred nine".