1087119787 has 4 divisors (see below), whose sum is σ = 1170744400. Its totient is φ = 1003495176.

The previous prime is 1087119779. The next prime is 1087119799. The reversal of 1087119787 is 7879117801.

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

It is a cyclic number.

It is not a de Polignac number, because 1087119787 - 2³ = 1087119779 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1087119787.

It is not an unprimeable number, because it can be changed into a prime (1087119727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41812287 + ... + 41812312.

It is an arithmetic number, because the mean of its divisors is an integer number (292686100).

Almost surely, 2^1087119787 is an apocalyptic number.

1087119787 is a deficient number, since it is larger than the sum of its proper divisors (83624613).

1087119787 is an equidigital number, since it uses as much as digits as its factorization.

1087119787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83624612.

The product of its (nonzero) digits is 197568, while the sum is 49.

The square root of 1087119787 is about 32971.4996170935. The cubic root of 1087119787 is about 1028.2351992410.

The spelling of 1087119787 in words is "one billion, eighty-seven million, one hundred nineteen thousand, seven hundred eighty-seven".