1087718638 has 8 divisors (see below), whose sum is σ = 1684209600. Its totient is φ = 526315440.

The previous prime is 1087718623. The next prime is 1087718647. The reversal of 1087718638 is 8368177801.

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

It is a junction number, because it is equal to n+sod(n) for n = 1087718591 and 1087718600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8771863 + ... + 8771986.

It is an arithmetic number, because the mean of its divisors is an integer number (210526200).

Almost surely, 2^1087718638 is an apocalyptic number.

1087718638 is a deficient number, since it is larger than the sum of its proper divisors (596490962).

1087718638 is a wasteful number, since it uses less digits than its factorization.

1087718638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17543882.

The product of its (nonzero) digits is 451584, while the sum is 49.

The square root of 1087718638 is about 32980.5797098838. The cubic root of 1087718638 is about 1028.4239691918.

The spelling of 1087718638 in words is "one billion, eighty-seven million, seven hundred eighteen thousand, six hundred thirty-eight".