1063987 has 2 divisors, whose sum is σ = 1063988. Its totient is φ = 1063986.

The previous prime is 1063973. The next prime is 1063999. The reversal of 1063987 is 7893601.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1063987 is a prime.

It is a super-2 number, since 2×1063987² = 2264136672338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1063927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531993 + 531994.

It is an arithmetic number, because the mean of its divisors is an integer number (531994).

2^1063987 is an apocalyptic number.

1063987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1063987 is an equidigital number, since it uses as much as digits as its factorization.

1063987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1063987 is about 1031.4974551592. The cubic root of 1063987 is about 102.0889586608.

The spelling of 1063987 in words is "one million, sixty-three thousand, nine hundred eighty-seven".