7663828 has 6 divisors (see below), whose sum is σ = 13411706. Its totient is φ = 3831912.

The previous prime is 7663823. The next prime is 7663829. The reversal of 7663828 is 8283667.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5846724 + 1817104 = 2418^2 + 1348^2 .

It is a super-2 number, since 2×7663828² = 117468519227168, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7⁸ + 6⁴ + 6⁸ + 3¹¹ + 8 + 2¹³ + 8⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7663823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957975 + ... + 957982.

Almost surely, 2^7663828 is an apocalyptic number.

It is an amenable number.

7663828 is a deficient number, since it is larger than the sum of its proper divisors (5747878).

7663828 is a wasteful number, since it uses less digits than its factorization.

7663828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915961 (or 1915959 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 7663828 is about 2768.3619705523. The cubic root of 7663828 is about 197.1583839703.

The spelling of 7663828 in words is "seven million, six hundred sixty-three thousand, eight hundred twenty-eight".