2792405921 has 2 divisors, whose sum is σ = 2792405922. Its totient is φ = 2792405920.

The previous prime is 2792405897. The next prime is 2792405923. The reversal of 2792405921 is 1295042972.

2792405921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1766100625 + 1026305296 = 42025^2 + 32036^2 .

It is a cyclic number.

It is not a de Polignac number, because 2792405921 - 2¹⁰ = 2792404897 is a prime.

Together with 2792405923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2792405923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1396202960 + 1396202961.

It is an arithmetic number, because the mean of its divisors is an integer number (1396202961).

Almost surely, 2^2792405921 is an apocalyptic number.

It is an amenable number.

2792405921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2792405921 is an equidigital number, since it uses as much as digits as its factorization.

2792405921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 2792405921 is about 52843.2201990000. The cubic root of 2792405921 is about 1408.1843607122.

The spelling of 2792405921 in words is "two billion, seven hundred ninety-two million, four hundred five thousand, nine hundred twenty-one".