7987136 has 14 divisors (see below), whose sum is σ = 15849600. Its totient is φ = 3993536.

The previous prime is 7987129. The next prime is 7987139. The reversal of 7987136 is 6317897.

It is a junction number, because it is equal to n+sod(n) for n = 7987093 and 7987102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62336 + ... + 62463.

Almost surely, 2^7987136 is an apocalyptic number.

It is an amenable number.

7987136 is a deficient number, since it is larger than the sum of its proper divisors (7862464).

7987136 is a wasteful number, since it uses less digits than its factorization.

7987136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124811 (or 124801 counting only the distinct ones).

The product of its digits is 63504, while the sum is 41.

The square root of 7987136 is about 2826.1521544319. The cubic root of 7987136 is about 199.8927424894.

The spelling of 7987136 in words is "seven million, nine hundred eighty-seven thousand, one hundred thirty-six".