1087556 has 12 divisors (see below), whose sum is σ = 1947792. Its totient is φ = 531048.

The previous prime is 1087553. The next prime is 1087561. The reversal of 1087556 is 6557801.

It is not an unprimeable number, because it can be changed into a prime (1087553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2990 + ... + 3333.

It is an arithmetic number, because the mean of its divisors is an integer number (162316).

2^1087556 is an apocalyptic number.

It is an amenable number.

1087556 is a deficient number, since it is larger than the sum of its proper divisors (860236).

1087556 is a wasteful number, since it uses less digits than its factorization.

1087556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370 (or 6368 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 1087556 is about 1042.8595303299. The cubic root of 1087556 is about 102.8372709258.

The spelling of 1087556 in words is "one million, eighty-seven thousand, five hundred fifty-six".