1087925 has 6 divisors (see below), whose sum is σ = 1349058. Its totient is φ = 870320.

The previous prime is 1087907. The next prime is 1087937. The reversal of 1087925 is 5297801.

It can be written as a sum of positive squares in 3 ways, for example, as 18769 + 1069156 = 137^2 + 1034^2 .

It is not a de Polignac number, because 1087925 - 2⁶ = 1087861 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1087891 and 1087900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21734 + ... + 21783.

It is an arithmetic number, because the mean of its divisors is an integer number (224843).

2^1087925 is an apocalyptic number.

It is an amenable number.

1087925 is a deficient number, since it is larger than the sum of its proper divisors (261133).

1087925 is an equidigital number, since it uses as much as digits as its factorization.

1087925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43527 (or 43522 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1087925 is about 1043.0364327290. The cubic root of 1087925 is about 102.8489002617.

The spelling of 1087925 in words is "one million, eighty-seven thousand, nine hundred twenty-five".