1017170087 has 4 divisors (see below), whose sum is σ = 1017967896. Its totient is φ = 1016372280.

The previous prime is 1017170057. The next prime is 1017170093. The reversal of 1017170087 is 7800717101.

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 1017170087 - 2¹² = 1017165991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1017170017) 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, 396989 + ... + 399542.

It is an arithmetic number, because the mean of its divisors is an integer number (254491974).

Almost surely, 2^1017170087 is an apocalyptic number.

1017170087 is a deficient number, since it is larger than the sum of its proper divisors (797809).

1017170087 is an equidigital number, since it uses as much as digits as its factorization.

1017170087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797808.

The product of its (nonzero) digits is 2744, while the sum is 32.

The square root of 1017170087 is about 31893.1040665533. The cubic root of 1017170087 is about 1005.6909143905.

Adding to 1017170087 its reverse (7800717101), we get a palindrome (8817887188).

The spelling of 1017170087 in words is "one billion, seventeen million, one hundred seventy thousand, eighty-seven".