49764813 has 16 divisors (see below), whose sum is σ = 76154496. Its totient is φ = 28316160.

The previous prime is 49764791. The next prime is 49764887. The reversal of 49764813 is 31846794.

It is not a de Polignac number, because 49764813 - 2⁸ = 49764557 is a prime.

It is a super-2 number, since 2×49764813² = 4953073225849938, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49764313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145 + ... + 9977.

It is an arithmetic number, because the mean of its divisors is an integer number (4759656).

Almost surely, 2^49764813 is an apocalyptic number.

It is an amenable number.

49764813 is a deficient number, since it is larger than the sum of its proper divisors (26389683).

49764813 is a wasteful number, since it uses less digits than its factorization.

49764813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10084.

The product of its digits is 145152, while the sum is 42.

The square root of 49764813 is about 7054.4179774096. The cubic root of 49764813 is about 367.8246176145.

The spelling of 49764813 in words is "forty-nine million, seven hundred sixty-four thousand, eight hundred thirteen".