49797729 has 12 divisors (see below), whose sum is σ = 72841600. Its totient is φ = 32777784.

The previous prime is 49797721. The next prime is 49797733. The reversal of 49797729 is 92779794.

It is not a de Polignac number, because 49797729 - 2³ = 49797721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49797721) 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, 34309 + ... + 35730.

Almost surely, 2^49797729 is an apocalyptic number.

It is an amenable number.

49797729 is a deficient number, since it is larger than the sum of its proper divisors (23043871).

49797729 is a wasteful number, since it uses less digits than its factorization.

49797729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70124 (or 70121 counting only the distinct ones).

The product of its digits is 2000376, while the sum is 54.

The square root of 49797729 is about 7056.7505978318. The cubic root of 49797729 is about 367.9056966339.

The spelling of 49797729 in words is "forty-nine million, seven hundred ninety-seven thousand, seven hundred twenty-nine".