7638628 has 24 divisors (see below), whose sum is σ = 13999104. Its totient is φ = 3643200.

The previous prime is 7638619. The next prime is 7638641. The reversal of 7638628 is 8268367.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7213 + ... + 8203.

It is an arithmetic number, because the mean of its divisors is an integer number (583296).

Almost surely, 2^7638628 is an apocalyptic number.

It is an amenable number.

7638628 is a deficient number, since it is larger than the sum of its proper divisors (6360476).

7638628 is a wasteful number, since it uses less digits than its factorization.

7638628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1081 counting only the distinct ones).

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

The square root of 7638628 is about 2763.8067949840. The cubic root of 7638628 is about 196.9420496575.

The spelling of 7638628 in words is "seven million, six hundred thirty-eight thousand, six hundred twenty-eight".