74545807 has 12 divisors (see below), whose sum is σ = 88564320. Its totient is φ = 62534976.

The previous prime is 74545781. The next prime is 74545817. The reversal of 74545807 is 70854547.

It is not a de Polignac number, because 74545807 - 2¹⁵ = 74513039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74545807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74545817) 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, 13882 + ... + 18487.

It is an arithmetic number, because the mean of its divisors is an integer number (7380360).

Almost surely, 2^74545807 is an apocalyptic number.

74545807 is a deficient number, since it is larger than the sum of its proper divisors (14018513).

74545807 is a wasteful number, since it uses less digits than its factorization.

74545807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32430 (or 32423 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 74545807 is about 8633.9913713184. The cubic root of 74545807 is about 420.8633168150.

The spelling of 74545807 in words is "seventy-four million, five hundred forty-five thousand, eight hundred seven".