7020728 has 96 divisors (see below), whose sum is σ = 17282160. Its totient is φ = 2626560.

The previous prime is 7020707. The next prime is 7020737. The reversal of 7020728 is 8270207.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 7020697 and 7020706.

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, 369503 + ... + 369521.

Almost surely, 2^7020728 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 7020728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8641080).

7020728 is an abundant number, since it is smaller than the sum of its proper divisors (10261432).

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

7020728 is a wasteful number, since it uses less digits than its factorization.

7020728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 7020728 is about 2649.6656392836. The cubic root of 7020728 is about 191.4817476304.

The spelling of 7020728 in words is "seven million, twenty thousand, seven hundred twenty-eight".