1087945 has 8 divisors (see below), whose sum is σ = 1347840. Its totient is φ = 842160.

The previous prime is 1087937. The next prime is 1087963. The reversal of 1087945 is 5497801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1087945 - 2³ = 1087937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1087945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3355 + ... + 3664.

It is an arithmetic number, because the mean of its divisors is an integer number (168480).

2^1087945 is an apocalyptic number.

It is an amenable number.

1087945 is a deficient number, since it is larger than the sum of its proper divisors (259895).

1087945 is an equidigital number, since it uses as much as digits as its factorization.

1087945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7055.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1087945 is about 1043.0460200777. The cubic root of 1087945 is about 102.8495305029.

It can be divided in two parts, 10879 and 45, that multiplied together give a triangular number (489555 = T₉₈₉).

The spelling of 1087945 in words is "one million, eighty-seven thousand, nine hundred forty-five".