8013421 has 8 divisors (see below), whose sum is σ = 9084320. Its totient is φ = 7007472.

The previous prime is 8013403. The next prime is 8013433. The reversal of 8013421 is 1243108.

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 8013421 - 2²¹ = 5916269 is a prime.

It is a super-2 number, since 2×8013421² = 128429832246482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8013451) 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, 15975 + ... + 16468.

It is an arithmetic number, because the mean of its divisors is an integer number (1135540).

Almost surely, 2^8013421 is an apocalyptic number.

It is an amenable number.

8013421 is a deficient number, since it is larger than the sum of its proper divisors (1070899).

8013421 is a wasteful number, since it uses less digits than its factorization.

8013421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32475.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 8013421 is about 2830.7986505578. The cubic root of 8013421 is about 200.1117791821. Note that the first 3 decimals are identical.

Adding to 8013421 its reverse (1243108), we get a palindrome (9256529).

The spelling of 8013421 in words is "eight million, thirteen thousand, four hundred twenty-one".