74720849 has 8 divisors (see below), whose sum is σ = 88340160. Its totient is φ = 61837776.

The previous prime is 74720843. The next prime is 74720903. The reversal of 74720849 is 94802747.

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

It is a de Polignac number, because none of the positive numbers 2^k-74720849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74720843) 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 7 ways as a sum of consecutive naturals, for example, 183839 + ... + 184244.

It is an arithmetic number, because the mean of its divisors is an integer number (11042520).

Almost surely, 2^74720849 is an apocalyptic number.

It is an amenable number.

74720849 is a deficient number, since it is larger than the sum of its proper divisors (13619311).

74720849 is a wasteful number, since it uses less digits than its factorization.

74720849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368119.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 74720849 is about 8644.1222226435. The cubic root of 74720849 is about 421.1924709012.

The spelling of 74720849 in words is "seventy-four million, seven hundred twenty thousand, eight hundred forty-nine".