48736821 has 12 divisors (see below), whose sum is σ = 75592032. Its totient is φ = 27849528.

The previous prime is 48736817. The next prime is 48736829. The reversal of 48736821 is 12863784.

It is not a de Polignac number, because 48736821 - 2² = 48736817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48736821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48736829) 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, 165625 + ... + 165918.

It is an arithmetic number, because the mean of its divisors is an integer number (6299336).

Almost surely, 2^48736821 is an apocalyptic number.

It is an amenable number.

48736821 is a deficient number, since it is larger than the sum of its proper divisors (26855211).

48736821 is a wasteful number, since it uses less digits than its factorization.

48736821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331560 (or 331553 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 48736821 is about 6981.1761902992. The cubic root of 48736821 is about 365.2742568761.

The spelling of 48736821 in words is "forty-eight million, seven hundred thirty-six thousand, eight hundred twenty-one".