1087897 has 2 divisors, whose sum is σ = 1087898. Its totient is φ = 1087896.

The previous prime is 1087873. The next prime is 1087903. The reversal of 1087897 is 7987801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 553536 + 534361 = 744^2 + 731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1087897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1087817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543948 + 543949.

It is an arithmetic number, because the mean of its divisors is an integer number (543949).

2^1087897 is an apocalyptic number.

It is an amenable number.

1087897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087897 is an equidigital number, since it uses as much as digits as its factorization.

1087897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 1087897 is about 1043.0230102927. The cubic root of 1087897 is about 102.8480179111.

The spelling of 1087897 in words is "one million, eighty-seven thousand, eight hundred ninety-seven".