74789505 has 48 divisors (see below), whose sum is σ = 148936320. Its totient is φ = 34009344.

The previous prime is 74789503. The next prime is 74789531. The reversal of 74789505 is 50598747.

74789505 is a `hidden beast` number, since 74 + 78 + 9 + 505 = 666.

It is not a de Polignac number, because 74789505 - 2¹ = 74789503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74789503) 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 47 ways as a sum of consecutive naturals, for example, 72886 + ... + 73904.

It is an arithmetic number, because the mean of its divisors is an integer number (3102840).

Almost surely, 2^74789505 is an apocalyptic number.

It is an amenable number.

74789505 is a deficient number, since it is larger than the sum of its proper divisors (74146815).

74789505 is a wasteful number, since it uses less digits than its factorization.

74789505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 74789505 is about 8648.0925642595. The cubic root of 74789505 is about 421.3214332922.

The spelling of 74789505 in words is "seventy-four million, seven hundred eighty-nine thousand, five hundred five".