861333004 has 36 divisors (see below), whose sum is σ = 1818125904. Its totient is φ = 349710048.

The previous prime is 861333001. The next prime is 861333013. The reversal of 861333004 is 400333168.

861333004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (861333001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32499 + ... + 52714.

Almost surely, 2^861333004 is an apocalyptic number.

It is an amenable number.

861333004 is an abundant number, since it is smaller than the sum of its proper divisors (956792900).

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

861333004 is a wasteful number, since it uses less digits than its factorization.

861333004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85262 (or 85241 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 861333004 is about 29348.4753266673. The cubic root of 861333004 is about 951.4596228876.

The spelling of 861333004 in words is "eight hundred sixty-one million, three hundred thirty-three thousand, four".