2921420927 has 4 divisors (see below), whose sum is σ = 2921878176. Its totient is φ = 2920963680.

The previous prime is 2921420911. The next prime is 2921420977. The reversal of 2921420927 is 7290241292.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2921420927 - 2⁴ = 2921420911 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 (2921420977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218903 + ... + 231864.

It is an arithmetic number, because the mean of its divisors is an integer number (730469544).

Almost surely, 2^2921420927 is an apocalyptic number.

2921420927 is a deficient number, since it is larger than the sum of its proper divisors (457249).

2921420927 is an equidigital number, since it uses as much as digits as its factorization.

2921420927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457248.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 2921420927 is about 54050.1704622659. The cubic root of 2921420927 is about 1429.5457058552.

The spelling of 2921420927 in words is "two billion, nine hundred twenty-one million, four hundred twenty thousand, nine hundred twenty-seven".