7791136 has 12 divisors (see below), whose sum is σ = 15338862. Its totient is φ = 3895552.

The previous prime is 7791109. The next prime is 7791139. The reversal of 7791136 is 6311977.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5035536 + 2755600 = 2244^2 + 1660^2 .

It is not an unprimeable number, because it can be changed into a prime (7791139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121705 + ... + 121768.

Almost surely, 2^7791136 is an apocalyptic number.

It is an amenable number.

7791136 is a deficient number, since it is larger than the sum of its proper divisors (7547726).

7791136 is a wasteful number, since it uses less digits than its factorization.

7791136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243483 (or 243475 counting only the distinct ones).

The product of its digits is 7938, while the sum is 34.

The square root of 7791136 is about 2791.2606470912. The cubic root of 7791136 is about 198.2440957836.

The spelling of 7791136 in words is "seven million, seven hundred ninety-one thousand, one hundred thirty-six".