1087973 has 2 divisors, whose sum is σ = 1087974. Its totient is φ = 1087972.

The previous prime is 1087967. The next prime is 1087981. The reversal of 1087973 is 3797801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1085764 + 2209 = 1042^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087973 - 2⁸ = 1087717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543986 + 543987.

It is an arithmetic number, because the mean of its divisors is an integer number (543987).

2^1087973 is an apocalyptic number.

It is an amenable number.

1087973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087973 is an equidigital number, since it uses as much as digits as its factorization.

1087973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 1087973 is about 1043.0594422179. The cubic root of 1087973 is about 102.8504128276.

The spelling of 1087973 in words is "one million, eighty-seven thousand, nine hundred seventy-three".