2789491976 has 16 divisors (see below), whose sum is σ = 5231552940. Its totient is φ = 1394411200.

The previous prime is 2789491961. The next prime is 2789491979. The reversal of 2789491976 is 6791949872.

It can be written as a sum of positive squares in 2 ways, for example, as 2727555076 + 61936900 = 52226^2 + 7870^2 .

It is not an unprimeable number, because it can be changed into a prime (2789491979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4475 + ... + 74826.

Almost surely, 2^2789491976 is an apocalyptic number.

It is an amenable number.

2789491976 is a deficient number, since it is larger than the sum of its proper divisors (2442060964).

2789491976 is a wasteful number, since it uses less digits than its factorization.

2789491976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83704 (or 83700 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 62.

The square root of 2789491976 is about 52815.6413953291. The cubic root of 2789491976 is about 1407.6943651021.

The spelling of 2789491976 in words is "two billion, seven hundred eighty-nine million, four hundred ninety-one thousand, nine hundred seventy-six".