48639021 has 8 divisors (see below), whose sum is σ = 65915424. Its totient is φ = 31894320.

The previous prime is 48639013. The next prime is 48639029. The reversal of 48639021 is 12093684.

48639021 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 (48639013) and next prime (48639029).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48639021 - 2³ = 48639013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48639029) 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 7 ways as a sum of consecutive naturals, for example, 132711 + ... + 133076.

It is an arithmetic number, because the mean of its divisors is an integer number (8239428).

Almost surely, 2^48639021 is an apocalyptic number.

It is an amenable number.

48639021 is a deficient number, since it is larger than the sum of its proper divisors (17276403).

48639021 is a wasteful number, since it uses less digits than its factorization.

48639021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265851.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 48639021 is about 6974.1681224358. The cubic root of 48639021 is about 365.0297617566.

The spelling of 48639021 in words is "forty-eight million, six hundred thirty-nine thousand, twenty-one".