48036821 has 4 divisors (see below), whose sum is σ = 54899232. Its totient is φ = 41174412.

The previous prime is 48036817. The next prime is 48036827. The reversal of 48036821 is 12863084.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48036821 - 2² = 48036817 is a prime.

It is a super-3 number, since 3×48036821³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48036827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3431195 + ... + 3431208.

It is an arithmetic number, because the mean of its divisors is an integer number (13724808).

Almost surely, 2^48036821 is an apocalyptic number.

It is an amenable number.

48036821 is a deficient number, since it is larger than the sum of its proper divisors (6862411).

48036821 is an equidigital number, since it uses as much as digits as its factorization.

48036821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6862410.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 48036821 is about 6930.8600476420. The cubic root of 48036821 is about 363.5170228666.

The spelling of 48036821 in words is "forty-eight million, thirty-six thousand, eight hundred twenty-one".