7638836 has 12 divisors (see below), whose sum is σ = 14071680. Its totient is φ = 3618360.

The previous prime is 7638823. The next prime is 7638853. The reversal of 7638836 is 6388367.

It is a junction number, because it is equal to n+sod(n) for n = 7638793 and 7638802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50180 + ... + 50331.

It is an arithmetic number, because the mean of its divisors is an integer number (1172640).

Almost surely, 2^7638836 is an apocalyptic number.

7638836 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

7638836 is a deficient number, since it is larger than the sum of its proper divisors (6432844).

7638836 is a wasteful number, since it uses less digits than its factorization.

7638836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100534 (or 100532 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 7638836 is about 2763.8444239863. The cubic root of 7638836 is about 196.9438372200.

The spelling of 7638836 in words is "seven million, six hundred thirty-eight thousand, eight hundred thirty-six".