870699606 has 64 divisors (see below), whose sum is σ = 2023495680. Its totient is φ = 244632960.

The previous prime is 870699593. The next prime is 870699607. The reversal of 870699606 is 606996078.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870699607) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1316916 + ... + 1317576.

It is an arithmetic number, because the mean of its divisors is an integer number (31617120).

Almost surely, 2^870699606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870699606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011747840).

870699606 is an abundant number, since it is smaller than the sum of its proper divisors (1152796074).

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

870699606 is a wasteful number, since it uses less digits than its factorization.

870699606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 870699606 is about 29507.6194566759. The cubic root of 870699606 is about 954.8960920545.

The spelling of 870699606 in words is "eight hundred seventy million, six hundred ninety-nine thousand, six hundred six".