870835161 has 16 divisors (see below), whose sum is σ = 1335133184. Its totient is φ = 494565264.

The previous prime is 870835159. The next prime is 870835169. The reversal of 870835161 is 161538078.

It is not a de Polignac number, because 870835161 - 2¹ = 870835159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870835169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123781 + ... + 130626.

It is an arithmetic number, because the mean of its divisors is an integer number (83445824).

Almost surely, 2^870835161 is an apocalyptic number.

It is an amenable number.

870835161 is a deficient number, since it is larger than the sum of its proper divisors (464298023).

870835161 is a wasteful number, since it uses less digits than its factorization.

870835161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254580.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 870835161 is about 29509.9163163842. The cubic root of 870835161 is about 954.9456438640.

The spelling of 870835161 in words is "eight hundred seventy million, eight hundred thirty-five thousand, one hundred sixty-one".