7213800 has 96 divisors (see below), whose sum is σ = 24418080. Its totient is φ = 1747200.

The previous prime is 7213781. The next prime is 7213819. The reversal of 7213800 is 83127.

It is an interprime number because it is at equal distance from previous prime (7213781) and next prime (7213819).

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6054 + ... + 7146.

It is an arithmetic number, because the mean of its divisors is an integer number (254355).

Almost surely, 2^7213800 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 7213800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12209040).

7213800 is an abundant number, since it is smaller than the sum of its proper divisors (17204280).

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

7213800 is a wasteful number, since it uses less digits than its factorization.

7213800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 7213800 is about 2685.8518201867. The cubic root of 7213800 is about 193.2211662745.

Adding to 7213800 its reverse (83127), we get a palindrome (7296927).

The spelling of 7213800 in words is "seven million, two hundred thirteen thousand, eight hundred".