48939813 has 12 divisors (see below), whose sum is σ = 76128780. Its totient is φ = 30116736.

The previous prime is 48939799. The next prime is 48939827. The reversal of 48939813 is 31893984.

48939813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (48939799) and next prime (48939827).

It can be written as a sum of positive squares in 2 ways, for example, as 12723489 + 36216324 = 3567^2 + 6018^2 .

It is not a de Polignac number, because 48939813 - 2⁶ = 48939749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48939833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209028 + ... + 209261.

It is an arithmetic number, because the mean of its divisors is an integer number (6344065).

Almost surely, 2^48939813 is an apocalyptic number.

It is an amenable number.

48939813 is a deficient number, since it is larger than the sum of its proper divisors (27188967).

48939813 is a wasteful number, since it uses less digits than its factorization.

48939813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418308 (or 418305 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 48939813 is about 6995.6996076161. The cubic root of 48939813 is about 365.7806846965.

It can be divided in two parts, 4893981 and 3, that added together give a palindrome (4893984).

The spelling of 48939813 in words is "forty-eight million, nine hundred thirty-nine thousand, eight hundred thirteen".