7131836 has 6 divisors (see below), whose sum is σ = 12480720. Its totient is φ = 3565916.

The previous prime is 7131797. The next prime is 7131841. The reversal of 7131836 is 6381317.

It is a junction number, because it is equal to n+sod(n) for n = 7131799 and 7131808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 891476 + ... + 891483.

It is an arithmetic number, because the mean of its divisors is an integer number (2080120).

Almost surely, 2^7131836 is an apocalyptic number.

It is an amenable number.

7131836 is a deficient number, since it is larger than the sum of its proper divisors (5348884).

7131836 is a wasteful number, since it uses less digits than its factorization.

7131836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782963 (or 1782961 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 7131836 is about 2670.5497561364. The cubic root of 7131836 is about 192.4865769018.

The spelling of 7131836 in words is "seven million, one hundred thirty-one thousand, eight hundred thirty-six".