74612009 has 16 divisors (see below), whose sum is σ = 79478784. Its totient is φ = 69930000.

The previous prime is 74611961. The next prime is 74612029. The reversal of 74612009 is 90021647.

It is a cyclic number.

It is not a de Polignac number, because 74612009 - 2²⁴ = 57834793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74612029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297134 + ... + 297384.

It is an arithmetic number, because the mean of its divisors is an integer number (4967424).

Almost surely, 2^74612009 is an apocalyptic number.

It is an amenable number.

74612009 is a deficient number, since it is larger than the sum of its proper divisors (4866775).

74612009 is a wasteful number, since it uses less digits than its factorization.

74612009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 74612009 is about 8637.8243209734. The cubic root of 74612009 is about 420.9878655127.

The spelling of 74612009 in words is "seventy-four million, six hundred twelve thousand, nine".