1087666 has 16 divisors (see below), whose sum is σ = 1721088. Its totient is φ = 514800.

The previous prime is 1087663. The next prime is 1087673. The reversal of 1087666 is 6667801.

It is not an unprimeable number, because it can be changed into a prime (1087663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3121 + ... + 3451.

It is an arithmetic number, because the mean of its divisors is an integer number (107568).

2^1087666 is an apocalyptic number.

1087666 is a deficient number, since it is larger than the sum of its proper divisors (633422).

1087666 is a wasteful number, since it uses less digits than its factorization.

1087666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1087666 is about 1042.9122686017. The cubic root of 1087666 is about 102.8407379407.

The spelling of 1087666 in words is "one million, eighty-seven thousand, six hundred sixty-six".