49794821 has 4 divisors (see below), whose sum is σ = 49830144. Its totient is φ = 49759500.

The previous prime is 49794799. The next prime is 49794841. The reversal of 49794821 is 12849794.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12849794 = 2 ⋅6424897.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49794821 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 (49794841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15455 + ... + 18396.

It is an arithmetic number, because the mean of its divisors is an integer number (12457536).

Almost surely, 2^49794821 is an apocalyptic number.

It is an amenable number.

49794821 is a deficient number, since it is larger than the sum of its proper divisors (35323).

49794821 is a wasteful number, since it uses less digits than its factorization.

49794821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35322.

The product of its digits is 145152, while the sum is 44.

The square root of 49794821 is about 7056.5445509824. The cubic root of 49794821 is about 367.8985350583.

The spelling of 49794821 in words is "forty-nine million, seven hundred ninety-four thousand, eight hundred twenty-one".