74745889 has 8 divisors (see below), whose sum is σ = 80258688. Its totient is φ = 69357120.

The previous prime is 74745877. The next prime is 74745893. The reversal of 74745889 is 98854747.

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

It is a cyclic number.

It is not a de Polignac number, because 74745889 - 2¹¹ = 74743841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74745289) 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, 29757 + ... + 32170.

It is an arithmetic number, because the mean of its divisors is an integer number (10032336).

Almost surely, 2^74745889 is an apocalyptic number.

It is an amenable number.

74745889 is a deficient number, since it is larger than the sum of its proper divisors (5512799).

74745889 is a wasteful number, since it uses less digits than its factorization.

74745889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62015.

The product of its digits is 2257920, while the sum is 52.

The square root of 74745889 is about 8645.5704843579. The cubic root of 74745889 is about 421.2395148062.

The spelling of 74745889 in words is "seventy-four million, seven hundred forty-five thousand, eight hundred eighty-nine".