870813137 has 8 divisors (see below), whose sum is σ = 884867136. Its totient is φ = 856790352.

The previous prime is 870813127. The next prime is 870813169. The reversal of 870813137 is 731318078.

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 870813137 - 2¹⁰ = 870812113 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 870813137.

It is not an unprimeable number, because it can be changed into a prime (870813107) 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, 52103 + ... + 66755.

It is an arithmetic number, because the mean of its divisors is an integer number (110608392).

Almost surely, 2^870813137 is an apocalyptic number.

It is an amenable number.

870813137 is a deficient number, since it is larger than the sum of its proper divisors (14053999).

870813137 is a wasteful number, since it uses less digits than its factorization.

870813137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15607.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 870813137 is about 29509.5431513265. The cubic root of 870813137 is about 954.9375933928.

The spelling of 870813137 in words is "eight hundred seventy million, eight hundred thirteen thousand, one hundred thirty-seven".