7638466 has 16 divisors (see below), whose sum is σ = 12737088. Its totient is φ = 3406000.

The previous prime is 7638403. The next prime is 7638473. The reversal of 7638466 is 6648367.

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, 2110 + ... + 4441.

It is an arithmetic number, because the mean of its divisors is an integer number (796068).

Almost surely, 2^7638466 is an apocalyptic number.

7638466 is a deficient number, since it is larger than the sum of its proper divisors (5098622).

7638466 is a wasteful number, since it uses less digits than its factorization.

7638466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617.

The product of its digits is 145152, while the sum is 40.

The square root of 7638466 is about 2763.7774874255. Note that the first 3 decimals coincide. The cubic root of 7638466 is about 196.9406573989.

Subtracting from 7638466 its reverse (6648367), we obtain a palindrome (990099).

It can be divided in two parts, 763 and 8466, that added together give a palindrome (9229).

The spelling of 7638466 in words is "seven million, six hundred thirty-eight thousand, four hundred sixty-six".