2102704679 has 4 divisors (see below), whose sum is σ = 2103340776. Its totient is φ = 2102068584.

The previous prime is 2102704661. The next prime is 2102704691. The reversal of 2102704679 is 9764072012.

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 2102704679 - 2¹² = 2102700583 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 (2102704379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313064 + ... + 319709.

It is an arithmetic number, because the mean of its divisors is an integer number (525835194).

Almost surely, 2^2102704679 is an apocalyptic number.

2102704679 is a deficient number, since it is larger than the sum of its proper divisors (636097).

2102704679 is an equidigital number, since it uses as much as digits as its factorization.

2102704679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636096.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 2102704679 is about 45855.2579209844. The cubic root of 2102704679 is about 1281.1286998581.

The spelling of 2102704679 in words is "two billion, one hundred two million, seven hundred four thousand, six hundred seventy-nine".