49769649 has 12 divisors (see below), whose sum is σ = 72457216. Its totient is φ = 32917752.

The previous prime is 49769647. The next prime is 49769653. The reversal of 49769649 is 94696794.

It is not a de Polignac number, because 49769649 - 2¹ = 49769647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49769595 and 49769604.

It is not an unprimeable number, because it can be changed into a prime (49769647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20629 + ... + 22914.

Almost surely, 2^49769649 is an apocalyptic number.

It is an amenable number.

49769649 is a deficient number, since it is larger than the sum of its proper divisors (22687567).

49769649 is a wasteful number, since it uses less digits than its factorization.

49769649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43676 (or 43673 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 49769649 is about 7054.7607330086. The cubic root of 49769649 is about 367.8365319379.

The spelling of 49769649 in words is "forty-nine million, seven hundred sixty-nine thousand, six hundred forty-nine".