74759985 has 12 divisors (see below), whose sum is σ = 129584052. Its totient is φ = 39871968.

The previous prime is 74759977. The next prime is 74759987. The reversal of 74759985 is 58995747.

74759985 is a `hidden beast` number, since 7 + 47 + 599 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 49449024 + 25310961 = 7032^2 + 5031^2 .

It is not a de Polignac number, because 74759985 - 2³ = 74759977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74759987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 830622 + ... + 830711.

It is an arithmetic number, because the mean of its divisors is an integer number (10798671).

Almost surely, 2^74759985 is an apocalyptic number.

It is an amenable number.

74759985 is a deficient number, since it is larger than the sum of its proper divisors (54824067).

74759985 is a wasteful number, since it uses less digits than its factorization.

74759985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661344 (or 1661341 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 74759985 is about 8646.3856610725. The cubic root of 74759985 is about 421.2659930472.

The spelling of 74759985 in words is "seventy-four million, seven hundred fifty-nine thousand, nine hundred eighty-five".