861480828 has 36 divisors (see below), whose sum is σ = 2345143528. Its totient is φ = 265070880.

The previous prime is 861480827. The next prime is 861480871. The reversal of 861480828 is 828084168.

It is a happy number.

861480828 is a `hidden beast` number, since 8 + 614 + 8 + 0 + 8 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861480827) 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 11 ways as a sum of consecutive naturals, for example, 919918 + ... + 920853.

Almost surely, 2^861480828 is an apocalyptic number.

It is an amenable number.

861480828 is an abundant number, since it is smaller than the sum of its proper divisors (1483662700).

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

861480828 is a wasteful number, since it uses less digits than its factorization.

861480828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840794 (or 1840789 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The square root of 861480828 is about 29350.9936458717. The cubic root of 861480828 is about 951.5140503550.

The spelling of 861480828 in words is "eight hundred sixty-one million, four hundred eighty thousand, eight hundred twenty-eight".