49776749 has 8 divisors (see below), whose sum is σ = 54371520. Its totient is φ = 45193600.

The previous prime is 49776743. The next prime is 49776767. The reversal of 49776749 is 94767794.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49776749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49776749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49776743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7784 + ... + 12654.

It is an arithmetic number, because the mean of its divisors is an integer number (6796440).

Almost surely, 2^49776749 is an apocalyptic number.

It is an amenable number.

49776749 is a deficient number, since it is larger than the sum of its proper divisors (4594771).

49776749 is a wasteful number, since it uses less digits than its factorization.

49776749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5811.

The product of its digits is 2667168, while the sum is 53.

The square root of 49776749 is about 7055.2639213569. The cubic root of 49776749 is about 367.8540226192.

The spelling of 49776749 in words is "forty-nine million, seven hundred seventy-six thousand, seven hundred forty-nine".