856970352 has 120 divisors (see below), whose sum is σ = 2774239104. Its totient is φ = 241875072.

The previous prime is 856970351. The next prime is 856970369. The reversal of 856970352 is 253079658.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 856970298 and 856970307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856970351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78543 + ... + 88785.

Almost surely, 2^856970352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 856970352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387119552).

856970352 is an abundant number, since it is smaller than the sum of its proper divisors (1917268752).

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

856970352 is a wasteful number, since it uses less digits than its factorization.

856970352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10347 (or 10338 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 856970352 is about 29274.0559540355. The cubic root of 856970352 is about 949.8505220033.

The spelling of 856970352 in words is "eight hundred fifty-six million, nine hundred seventy thousand, three hundred fifty-two".