8421300 has 72 divisors (see below), whose sum is σ = 27081600. Its totient is φ = 2244960.

The previous prime is 8421251. The next prime is 8421403. The reversal of 8421300 is 31248.

It is a happy number.

8421300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1141 + ... + 4259.

Almost surely, 2^8421300 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 8421300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13540800).

8421300 is an abundant number, since it is smaller than the sum of its proper divisors (18660300).

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

8421300 is a wasteful number, since it uses less digits than its factorization.

8421300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142 (or 3129 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 8421300 is about 2901.9476218567. The cubic root of 8421300 is about 203.4509457231.

Adding to 8421300 its reverse (31248), we get a palindrome (8452548).

The spelling of 8421300 in words is "eight million, four hundred twenty-one thousand, three hundred".