48239821 has 8 divisors (see below), whose sum is σ = 56476224. Its totient is φ = 40339680.

The previous prime is 48239801. The next prime is 48239843. The reversal of 48239821 is 12893284.

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

It is a cyclic number.

It is not a de Polignac number, because 48239821 - 2¹¹ = 48237773 is a prime.

It is a super-2 number, since 2×48239821² = 4654160660224082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48239801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83755 + ... + 84328.

It is an arithmetic number, because the mean of its divisors is an integer number (7059528).

Almost surely, 2^48239821 is an apocalyptic number.

48239821 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

48239821 is a deficient number, since it is larger than the sum of its proper divisors (8236403).

48239821 is a wasteful number, since it uses less digits than its factorization.

48239821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168131.

The product of its digits is 27648, while the sum is 37.

The square root of 48239821 is about 6945.4892556248. The cubic root of 48239821 is about 364.0283684568.

The spelling of 48239821 in words is "forty-eight million, two hundred thirty-nine thousand, eight hundred twenty-one".