8813421 has 16 divisors (see below), whose sum is σ = 13104000. Its totient is φ = 5854464.

The previous prime is 8813407. The next prime is 8813447. The reversal of 8813421 is 1243188.

It is not a de Polignac number, because 8813421 - 2¹¹ = 8811373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8813471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11760 + ... + 12486.

It is an arithmetic number, because the mean of its divisors is an integer number (819000).

Almost surely, 2^8813421 is an apocalyptic number.

It is an amenable number.

8813421 is a deficient number, since it is larger than the sum of its proper divisors (4290579).

8813421 is a wasteful number, since it uses less digits than its factorization.

8813421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185 (or 1179 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 8813421 is about 2968.7406420905. The cubic root of 8813421 is about 206.5609260784.

The spelling of 8813421 in words is "eight million, eight hundred thirteen thousand, four hundred twenty-one".