49793749 has 4 divisors (see below), whose sum is σ = 51139564. Its totient is φ = 48447936.

The previous prime is 49793747. The next prime is 49793753. The reversal of 49793749 is 94739794.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94739794 = 2 ⋅47369897.

It can be written as a sum of positive squares in 2 ways, for example, as 32695524 + 17098225 = 5718^2 + 4135^2 .

It is a cyclic number.

It is not a de Polignac number, because 49793749 - 2¹ = 49793747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49793696 and 49793705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49793741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672852 + ... + 672925.

It is an arithmetic number, because the mean of its divisors is an integer number (12784891).

Almost surely, 2^49793749 is an apocalyptic number.

It is an amenable number.

49793749 is a deficient number, since it is larger than the sum of its proper divisors (1345815).

49793749 is a wasteful number, since it uses less digits than its factorization.

49793749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345814.

The product of its digits is 1714608, while the sum is 52.

The square root of 49793749 is about 7056.4685927169. The cubic root of 49793749 is about 367.8958949574.

The spelling of 49793749 in words is "forty-nine million, seven hundred ninety-three thousand, seven hundred forty-nine".