2921740279 has 2 divisors, whose sum is σ = 2921740280. Its totient is φ = 2921740278.

The previous prime is 2921740277. The next prime is 2921740303. The reversal of 2921740279 is 9720471292.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2921740279 - 2¹ = 2921740277 is a prime.

Together with 2921740277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2921740271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1460870139 + 1460870140.

It is an arithmetic number, because the mean of its divisors is an integer number (1460870140).

Almost surely, 2^2921740279 is an apocalyptic number.

2921740279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2921740279 is an equidigital number, since it uses as much as digits as its factorization.

2921740279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 2921740279 is about 54053.1245997861. The cubic root of 2921740279 is about 1429.5977937099.

It can be divided in two parts, 29217 and 40279, that added together give a palindrome (69496).

The spelling of 2921740279 in words is "two billion, nine hundred twenty-one million, seven hundred forty thousand, two hundred seventy-nine".