8946996861 has 16 divisors (see below), whose sum is σ = 13779332928. Its totient is φ = 5103456000.

The previous prime is 8946996859. The next prime is 8946996881. The reversal of 8946996861 is 1686996498.

It is a happy number.

It is not a de Polignac number, because 8946996861 - 2¹ = 8946996859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8946996792 and 8946996801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8946996881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7973590 + ... + 7974711.

It is an arithmetic number, because the mean of its divisors is an integer number (861208308).

Almost surely, 2^8946996861 is an apocalyptic number.

It is an amenable number.

8946996861 is a deficient number, since it is larger than the sum of its proper divisors (4832336067).

8946996861 is a wasteful number, since it uses less digits than its factorization.

8946996861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15948332.

The product of its digits is 40310784, while the sum is 66.

The square root of 8946996861 is about 94588.5662276366. The cubic root of 8946996861 is about 2075.9924114108.

The spelling of 8946996861 in words is "eight billion, nine hundred forty-six million, nine hundred ninety-six thousand, eight hundred sixty-one".