861202008 has 48 divisors (see below), whose sum is σ = 2340439920. Its totient is φ = 286080576.

The previous prime is 861201977. The next prime is 861202033. The reversal of 861202008 is 800202168.

861202008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 685 + ... + 41507.

It is an arithmetic number, because the mean of its divisors is an integer number (48759165).

Almost surely, 2^861202008 is an apocalyptic number.

It is an amenable number.

861202008 is an abundant number, since it is smaller than the sum of its proper divisors (1479237912).

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

861202008 is a wasteful number, since it uses less digits than its factorization.

861202008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41128 (or 41121 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 861202008 is about 29346.2435074747. The cubic root of 861202008 is about 951.4113861339.

The spelling of 861202008 in words is "eight hundred sixty-one million, two hundred two thousand, eight".