7640828 has 36 divisors (see below), whose sum is σ = 14757120. Its totient is φ = 3459456.

The previous prime is 7640827. The next prime is 7640861. The reversal of 7640828 is 8280467.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7640821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60101 + ... + 60227.

It is an arithmetic number, because the mean of its divisors is an integer number (409920).

Almost surely, 2^7640828 is an apocalyptic number.

It is an amenable number.

7640828 is a deficient number, since it is larger than the sum of its proper divisors (7116292).

7640828 is a wasteful number, since it uses less digits than its factorization.

7640828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 7640828 is about 2764.2047681024. The cubic root of 7640828 is about 196.9609549251.

It can be divided in two parts, 76 and 40828, that added together give a palindrome (40904).

The spelling of 7640828 in words is "seven million, six hundred forty thousand, eight hundred twenty-eight".