2079734921 has 4 divisors (see below), whose sum is σ = 2268801744. Its totient is φ = 1890668100.

The previous prime is 2079734879. The next prime is 2079734941. The reversal of 2079734921 is 1294379702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2079734921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2079734941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94533395 + ... + 94533416.

It is an arithmetic number, because the mean of its divisors is an integer number (567200436).

Almost surely, 2^2079734921 is an apocalyptic number.

It is an amenable number.

2079734921 is a deficient number, since it is larger than the sum of its proper divisors (189066823).

2079734921 is a wasteful number, since it uses less digits than its factorization.

2079734921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189066822.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 2079734921 is about 45604.1107905855. The cubic root of 2079734921 is about 1276.4466309344.

The spelling of 2079734921 in words is "two billion, seventy-nine million, seven hundred thirty-four thousand, nine hundred twenty-one".