8421948 has 48 divisors (see below), whose sum is σ = 22596000. Its totient is φ = 2709504.

The previous prime is 8421929. The next prime is 8421961. The reversal of 8421948 is 8491248.

It is a super-2 number, since 2×8421948² = 141858416229408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1788 + ... + 4476.

It is an arithmetic number, because the mean of its divisors is an integer number (470750).

Almost surely, 2^8421948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8421948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11298000).

8421948 is an abundant number, since it is smaller than the sum of its proper divisors (14174052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8421948 is a wasteful number, since it uses less digits than its factorization.

8421948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731 (or 2723 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 8421948 is about 2902.0592688641. The cubic root of 8421948 is about 203.4561639527.

The spelling of 8421948 in words is "eight million, four hundred twenty-one thousand, nine hundred forty-eight".