7828513 has 16 divisors (see below), whose sum is σ = 10275840. Its totient is φ = 5778000.

The previous prime is 7828511. The next prime is 7828519. The reversal of 7828513 is 3158287.

7828513 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7828513 - 2¹ = 7828511 is a prime.

It is a super-2 number, since 2×7828513² = 122571231582338, which contains 22 as substring.

It is a Duffinian number.

7828513 is strictly pandigital in base 8.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (7828511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213 + ... + 4138.

It is an arithmetic number, because the mean of its divisors is an integer number (642240).

Almost surely, 2^7828513 is an apocalyptic number.

It is an amenable number.

7828513 is a deficient number, since it is larger than the sum of its proper divisors (2447327).

7828513 is a wasteful number, since it uses less digits than its factorization.

7828513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388.

The product of its digits is 13440, while the sum is 34.

The square root of 7828513 is about 2797.9479980872. The cubic root of 7828513 is about 198.5606072611.

The spelling of 7828513 in words is "seven million, eight hundred twenty-eight thousand, five hundred thirteen".