74116509 has 8 divisors (see below), whose sum is σ = 100924800. Its totient is φ = 48359616.

The previous prime is 74116507. The next prime is 74116519. The reversal of 74116509 is 90561147.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74116509 - 2¹ = 74116507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74116509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74116507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262684 + ... + 262965.

It is an arithmetic number, because the mean of its divisors is an integer number (12615600).

Almost surely, 2^74116509 is an apocalyptic number.

It is an amenable number.

74116509 is a deficient number, since it is larger than the sum of its proper divisors (26808291).

74116509 is a wasteful number, since it uses less digits than its factorization.

74116509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525699.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 74116509 is about 8609.0945516936. The cubic root of 74116509 is about 420.0538649736.

The spelling of 74116509 in words is "seventy-four million, one hundred sixteen thousand, five hundred nine".