74712845 has 32 divisors (see below), whose sum is σ = 99878400. Its totient is φ = 53415936.

The previous prime is 74712829. The next prime is 74712863. The reversal of 74712845 is 54821747.

It is a cyclic number.

It is not a de Polignac number, because 74712845 - 2⁴ = 74712829 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74712799 and 74712808.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 129197 + ... + 129773.

It is an arithmetic number, because the mean of its divisors is an integer number (3121200).

Almost surely, 2^74712845 is an apocalyptic number.

It is an amenable number.

74712845 is a deficient number, since it is larger than the sum of its proper divisors (25165555).

74712845 is a wasteful number, since it uses less digits than its factorization.

74712845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677.

The product of its digits is 62720, while the sum is 38.

The square root of 74712845 is about 8643.6592366891. The cubic root of 74712845 is about 421.1774311679.

It can be divided in two parts, 74712 and 845, that added together give a palindrome (75557).

The spelling of 74712845 in words is "seventy-four million, seven hundred twelve thousand, eight hundred forty-five".