1087171803 has 12 divisors (see below), whose sum is σ = 1577804488. Its totient is φ = 721344960.

The previous prime is 1087171783. The next prime is 1087171831. The reversal of 1087171803 is 3081717801.

It is not a de Polignac number, because 1087171803 - 2⁶ = 1087171739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087171853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284350 + ... + 288147.

Almost surely, 2^1087171803 is an apocalyptic number.

1087171803 is a deficient number, since it is larger than the sum of its proper divisors (490632685).

1087171803 is a wasteful number, since it uses less digits than its factorization.

1087171803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572714 (or 572711 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 36.

The square root of 1087171803 is about 32972.2884101180. The cubic root of 1087171803 is about 1028.2515984854.

The spelling of 1087171803 in words is "one billion, eighty-seven million, one hundred seventy-one thousand, eight hundred three".