1017870870 has 32 divisors (see below), whose sum is σ = 2443841280. Its totient is φ = 271326560.

The previous prime is 1017870863. The next prime is 1017870923. The reversal of 1017870870 is 780787101.

It is a super-2 number, since 2×1017870870² = 2072122215989113800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99871 + ... + 109589.

It is an arithmetic number, because the mean of its divisors is an integer number (76370040).

Almost surely, 2^1017870870 is an apocalyptic number.

1017870870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1017870870 is an abundant number, since it is smaller than the sum of its proper divisors (1425970410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1017870870 is a wasteful number, since it uses less digits than its factorization.

1017870870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13220.

The product of its (nonzero) digits is 21952, while the sum is 39.

The square root of 1017870870 is about 31904.0886094557. The cubic root of 1017870870 is about 1005.9218194985.

The spelling of 1017870870 in words is "one billion, seventeen million, eight hundred seventy thousand, eight hundred seventy".