861766098 has 16 divisors (see below), whose sum is σ = 1724209536. Its totient is φ = 287142480.

The previous prime is 861766097. The next prime is 861766133. The reversal of 861766098 is 890667168.

It is a happy number.

861766098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 861766098.

It is not an unprimeable number, because it can be changed into a prime (861766097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10861 + ... + 42912.

It is an arithmetic number, because the mean of its divisors is an integer number (107763096).

Almost surely, 2^861766098 is an apocalyptic number.

861766098 is an abundant number, since it is smaller than the sum of its proper divisors (862443438).

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

861766098 is a wasteful number, since it uses less digits than its factorization.

861766098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56449.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 861766098 is about 29355.8528746824. The cubic root of 861766098 is about 951.6190666047.

The spelling of 861766098 in words is "eight hundred sixty-one million, seven hundred sixty-six thousand, ninety-eight".