7028724 has 12 divisors (see below), whose sum is σ = 16400384. Its totient is φ = 2342904.

The previous prime is 7028719. The next prime is 7028741. The reversal of 7028724 is 4278207.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×7028724² = 98805922136352, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7028691 and 7028700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292852 + ... + 292875.

Almost surely, 2^7028724 is an apocalyptic number.

It is an amenable number.

7028724 is an abundant number, since it is smaller than the sum of its proper divisors (9371660).

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

7028724 is a wasteful number, since it uses less digits than its factorization.

7028724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585734 (or 585732 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 7028724 is about 2651.1740795353. The cubic root of 7028724 is about 191.5544137491.

The spelling of 7028724 in words is "seven million, twenty-eight thousand, seven hundred twenty-four".