74812291 has 16 divisors (see below), whose sum is σ = 84771360. Its totient is φ = 65594880.

The previous prime is 74812277. The next prime is 74812313. The reversal of 74812291 is 19221847.

It is a cyclic number.

It is not a de Polignac number, because 74812291 - 2¹¹ = 74810243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74812211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17805 + ... + 21601.

It is an arithmetic number, because the mean of its divisors is an integer number (5298210).

Almost surely, 2^74812291 is an apocalyptic number.

74812291 is a deficient number, since it is larger than the sum of its proper divisors (9959069).

74812291 is a wasteful number, since it uses less digits than its factorization.

74812291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894.

The product of its digits is 8064, while the sum is 34.

The square root of 74812291 is about 8649.4098642624. The cubic root of 74812291 is about 421.3642167255.

The spelling of 74812291 in words is "seventy-four million, eight hundred twelve thousand, two hundred ninety-one".