2086946856 has 40 divisors (see below), whose sum is σ = 5845385370. Its totient is φ = 695648736.

The previous prime is 2086946839. The next prime is 2086946857. The reversal of 2086946856 is 6586496802.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2046114756 + 40832100 = 45234^2 + 6390^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2086946857) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1609651 + ... + 1610946.

Almost surely, 2^2086946856 is an apocalyptic number.

It is an amenable number.

2086946856 is an abundant number, since it is smaller than the sum of its proper divisors (3758438514).

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

2086946856 is a wasteful number, since it uses less digits than its factorization.

2086946856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220615 (or 3220602 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The square root of 2086946856 is about 45683.1134665754. The cubic root of 2086946856 is about 1277.9203812067.

It can be divided in two parts, 2086946 and 856, that added together give a palindrome (2087802).

The spelling of 2086946856 in words is "two billion, eighty-six million, nine hundred forty-six thousand, eight hundred fifty-six".