859327920 has 320 divisors, whose sum is σ = 3289075200. Its totient is φ = 204456960.

The previous prime is 859327919. The next prime is 859327927. The reversal of 859327920 is 29723958.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (859327927) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1401534 + ... + 1402146.

It is an arithmetic number, because the mean of its divisors is an integer number (10278360).

Almost surely, 2^859327920 is an apocalyptic number.

859327920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 859327920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1644537600).

859327920 is an abundant number, since it is smaller than the sum of its proper divisors (2429747280).

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

859327920 is a wasteful number, since it uses less digits than its factorization.

859327920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 859327920 is about 29314.2954887202. The cubic root of 859327920 is about 950.7207531277.

The spelling of 859327920 in words is "eight hundred fifty-nine million, three hundred twenty-seven thousand, nine hundred twenty".