74516709 has 4 divisors (see below), whose sum is σ = 99355616. Its totient is φ = 49677804.

The previous prime is 74516699. The next prime is 74516737. The reversal of 74516709 is 90761547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90761547 = 3 ⋅30253849.

It is not a de Polignac number, because 74516709 - 2⁷ = 74516581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74516759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12419449 + ... + 12419454.

It is an arithmetic number, because the mean of its divisors is an integer number (24838904).

Almost surely, 2^74516709 is an apocalyptic number.

It is an amenable number.

74516709 is a deficient number, since it is larger than the sum of its proper divisors (24838907).

74516709 is a wasteful number, since it uses less digits than its factorization.

74516709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24838906.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 74516709 is about 8632.3061229315. The cubic root of 74516709 is about 420.8085501553.

The spelling of 74516709 in words is "seventy-four million, five hundred sixteen thousand, seven hundred nine".