2992696821 has 16 divisors (see below), whose sum is σ = 4666974400. Its totient is φ = 1890123984.

The previous prime is 2992696787. The next prime is 2992696829. The reversal of 2992696821 is 1286962992.

It is a happy number.

It is not a de Polignac number, because 2992696821 - 2⁹ = 2992696309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2992696829) 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, 2916346 + ... + 2917371.

It is an arithmetic number, because the mean of its divisors is an integer number (291685900).

Almost surely, 2^2992696821 is an apocalyptic number.

It is an amenable number.

2992696821 is a deficient number, since it is larger than the sum of its proper divisors (1674277579).

2992696821 is a wasteful number, since it uses less digits than its factorization.

2992696821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5833745 (or 5833739 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 2992696821 is about 54705.5465286656. The cubic root of 2992696821 is about 1441.0782852505.

The spelling of 2992696821 in words is "two billion, nine hundred ninety-two million, six hundred ninety-six thousand, eight hundred twenty-one".