49791173 has 4 divisors (see below), whose sum is σ = 51508140. Its totient is φ = 48074208.

The previous prime is 49791163. The next prime is 49791199. The reversal of 49791173 is 37119794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38353249 + 11437924 = 6193^2 + 3382^2 .

It is a cyclic number.

It is not a de Polignac number, because 49791173 - 2¹⁰ = 49790149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49791173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49791163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858440 + ... + 858497.

It is an arithmetic number, because the mean of its divisors is an integer number (12877035).

Almost surely, 2^49791173 is an apocalyptic number.

It is an amenable number.

49791173 is a deficient number, since it is larger than the sum of its proper divisors (1716967).

49791173 is a wasteful number, since it uses less digits than its factorization.

49791173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716966.

The product of its digits is 47628, while the sum is 41.

The square root of 49791173 is about 7056.2860627954. The cubic root of 49791173 is about 367.8895506793.

The spelling of 49791173 in words is "forty-nine million, seven hundred ninety-one thousand, one hundred seventy-three".