860999328 has 192 divisors, whose sum is σ = 2969568000. Its totient is φ = 237468672.

The previous prime is 860999281. The next prime is 860999339. The reversal of 860999328 is 823999068.

860999328 is a `hidden beast` number, since 8 + 609 + 9 + 9 + 3 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172938 + ... + 177846.

It is an arithmetic number, because the mean of its divisors is an integer number (15466500).

Almost surely, 2^860999328 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 860999328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1484784000).

860999328 is an abundant number, since it is smaller than the sum of its proper divisors (2108568672).

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

860999328 is a wasteful number, since it uses less digits than its factorization.

860999328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964 (or 4950 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 860999328 is about 29342.7900513908. The cubic root of 860999328 is about 951.3367434882.

The spelling of 860999328 in words is "eight hundred sixty million, nine hundred ninety-nine thousand, three hundred twenty-eight".