2921373979 has 4 divisors (see below), whose sum is σ = 2921543784. Its totient is φ = 2921204176.

The previous prime is 2921373977. The next prime is 2921373989. The reversal of 2921373979 is 9793731292.

It is a happy number.

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 2921373979 - 2¹ = 2921373977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2921373977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55762 + ... + 94615.

It is an arithmetic number, because the mean of its divisors is an integer number (730385946).

Almost surely, 2^2921373979 is an apocalyptic number.

2921373979 is a deficient number, since it is larger than the sum of its proper divisors (169805).

2921373979 is a wasteful number, since it uses less digits than its factorization.

2921373979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169804.

The product of its digits is 1285956, while the sum is 52.

The square root of 2921373979 is about 54049.7361603181. The cubic root of 2921373979 is about 1429.5380480895.

The spelling of 2921373979 in words is "two billion, nine hundred twenty-one million, three hundred seventy-three thousand, nine hundred seventy-nine".