48078821 has 4 divisors (see below), whose sum is σ = 54947232. Its totient is φ = 41210412.

The previous prime is 48078761. The next prime is 48078871. The reversal of 48078821 is 12887084.

It is a happy number.

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 48078821 - 2²² = 43884517 is a prime.

It is a super-3 number, since 3×48078821³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48078871) 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, 3434195 + ... + 3434208.

It is an arithmetic number, because the mean of its divisors is an integer number (13736808).

Almost surely, 2^48078821 is an apocalyptic number.

It is an amenable number.

48078821 is a deficient number, since it is larger than the sum of its proper divisors (6868411).

48078821 is an equidigital number, since it uses as much as digits as its factorization.

48078821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6868410.

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 48078821 is about 6933.8893126441. The cubic root of 48078821 is about 363.6229365326.

The spelling of 48078821 in words is "forty-eight million, seventy-eight thousand, eight hundred twenty-one".