7028100 has 144 divisors (see below), whose sum is σ = 23956800. Its totient is φ = 1762560.

The previous prime is 7028093. The next prime is 7028101. The reversal of 7028100 is 18207.

7028100 is nontrivially palindromic in base 13.

7028100 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×7028100² = 98788379220000, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (7028101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51232 + ... + 51368.

Almost surely, 2^7028100 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 7028100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11978400).

7028100 is an abundant number, since it is smaller than the sum of its proper divisors (16928700).

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

7028100 is a wasteful number, since it uses less digits than its factorization.

7028100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 7028100 is about 2651.0563932138. The cubic root of 7028100 is about 191.5487449396.

The spelling of 7028100 in words is "seven million, twenty-eight thousand, one hundred".