1087636 has 24 divisors (see below), whose sum is σ = 2187360. Its totient is φ = 468000.

The previous prime is 1087631. The next prime is 1087657. The reversal of 1087636 is 6367801.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1087598 and 1087607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (91140).

2^1087636 is an apocalyptic number.

It is an amenable number.

1087636 is an abundant number, since it is smaller than the sum of its proper divisors (1099724).

1087636 is a wasteful number, since it uses less digits than its factorization.

1087636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1087636 is about 1042.8978857012. The cubic root of 1087636 is about 102.8397924144.

It can be divided in two parts, 108 and 7636, that added together give a square (7744 = 88²).

The spelling of 1087636 in words is "one million, eighty-seven thousand, six hundred thirty-six".