870611742 has 192 divisors, whose sum is σ = 2555804160. Its totient is φ = 206841600.

The previous prime is 870611741. The next prime is 870611747. The reversal of 870611742 is 247116078.

It is a junction number, because it is equal to n+sod(n) for n = 870611697 and 870611706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870611741) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3801684 + ... + 3801912.

It is an arithmetic number, because the mean of its divisors is an integer number (13311480).

Almost surely, 2^870611742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870611742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1277902080).

870611742 is an abundant number, since it is smaller than the sum of its proper divisors (1685192418).

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

870611742 is a wasteful number, since it uses less digits than its factorization.

870611742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 870611742 is about 29506.1305833212. The cubic root of 870611742 is about 954.8639708300.

The spelling of 870611742 in words is "eight hundred seventy million, six hundred eleven thousand, seven hundred forty-two".