1087903394 has 4 divisors (see below), whose sum is σ = 1631855094. Its totient is φ = 543951696.

The previous prime is 1087903357. The next prime is 1087903409. The reversal of 1087903394 is 4933097801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 976875025 + 111028369 = 31255^2 + 10537^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271975847 + ... + 271975850.

Almost surely, 2^1087903394 is an apocalyptic number.

1087903394 is a deficient number, since it is larger than the sum of its proper divisors (543951700).

1087903394 is an equidigital number, since it uses as much as digits as its factorization.

1087903394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543951699.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 1087903394 is about 32983.3805726460. The cubic root of 1087903394 is about 1028.4821940351.

The spelling of 1087903394 in words is "one billion, eighty-seven million, nine hundred three thousand, three hundred ninety-four".