8049421 has 4 divisors (see below), whose sum is σ = 8075452. Its totient is φ = 8023392.

The previous prime is 8049413. The next prime is 8049467. The reversal of 8049421 is 1249408.

8049421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1729225 + 6320196 = 1315^2 + 2514^2 .

It is a cyclic number.

It is not a de Polignac number, because 8049421 - 2³ = 8049413 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8049421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8049401) 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 3 ways as a sum of consecutive naturals, for example, 12546 + ... + 13171.

It is an arithmetic number, because the mean of its divisors is an integer number (2018863).

Almost surely, 2^8049421 is an apocalyptic number.

It is an amenable number.

8049421 is a deficient number, since it is larger than the sum of its proper divisors (26031).

8049421 is a wasteful number, since it uses less digits than its factorization.

8049421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26030.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 8049421 is about 2837.1501546446. The cubic root of 8049421 is about 200.4109964975.

The spelling of 8049421 in words is "eight million, forty-nine thousand, four hundred twenty-one".