870135517 has 8 divisors (see below), whose sum is σ = 939277440. Its totient is φ = 803602800.

The previous prime is 870135491. The next prime is 870135523. The reversal of 870135517 is 715531078.

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

It is a cyclic number.

It is not a de Polignac number, because 870135517 - 2⁷ = 870135389 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 (870135527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651609 + ... + 652942.

It is an arithmetic number, because the mean of its divisors is an integer number (117409680).

Almost surely, 2^870135517 is an apocalyptic number.

It is an amenable number.

870135517 is a deficient number, since it is larger than the sum of its proper divisors (69141923).

870135517 is a wasteful number, since it uses less digits than its factorization.

870135517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304603.

The product of its (nonzero) digits is 29400, while the sum is 37.

The square root of 870135517 is about 29498.0595463498. The cubic root of 870135517 is about 954.6898354069.

The spelling of 870135517 in words is "eight hundred seventy million, one hundred thirty-five thousand, five hundred seventeen".