49789309 has 8 divisors (see below), whose sum is σ = 52224768. Its totient is φ = 47411280.

The previous prime is 49789303. The next prime is 49789321. The reversal of 49789309 is 90398794.

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

It is a cyclic number.

It is not a de Polignac number, because 49789309 - 2¹¹ = 49787261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49789303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12577 + ... + 16054.

It is an arithmetic number, because the mean of its divisors is an integer number (6528096).

Almost surely, 2^49789309 is an apocalyptic number.

It is an amenable number.

49789309 is a deficient number, since it is larger than the sum of its proper divisors (2435459).

49789309 is a wasteful number, since it uses less digits than its factorization.

49789309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28715.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 49789309 is about 7056.1539807462. The cubic root of 49789309 is about 367.8849598075.

The spelling of 49789309 in words is "forty-nine million, seven hundred eighty-nine thousand, three hundred nine".