1087663 has 2 divisors, whose sum is σ = 1087664. Its totient is φ = 1087662.

The previous prime is 1087657. The next prime is 1087673. The reversal of 1087663 is 3667801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1087663 - 2⁵ = 1087631 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543831 + 543832.

It is an arithmetic number, because the mean of its divisors is an integer number (543832).

2^1087663 is an apocalyptic number.

1087663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087663 is an equidigital number, since it uses as much as digits as its factorization.

1087663 is an evil number, because the sum of its binary digits is even.

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

The square root of 1087663 is about 1042.9108303206. The cubic root of 1087663 is about 102.8406433889.

The spelling of 1087663 in words is "one million, eighty-seven thousand, six hundred sixty-three".