1087490 has 16 divisors (see below), whose sum is σ = 2072952. Its totient is φ = 409344.

The previous prime is 1087487. The next prime is 1087517. The reversal of 1087490 is 947801.

It can be written as a sum of positive squares in 4 ways, for example, as 674041 + 413449 = 821^2 + 643^2 .

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3029 + ... + 3368.

2^1087490 is an apocalyptic number.

1087490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1087490 is a deficient number, since it is larger than the sum of its proper divisors (985462).

1087490 is a wasteful number, since it uses less digits than its factorization.

1087490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1087490 is about 1042.8278860867. The cubic root of 1087490 is about 102.8351906047.

The spelling of 1087490 in words is "one million, eighty-seven thousand, four hundred ninety".