2107947979 has 16 divisors (see below), whose sum is σ = 2215065600. Its totient is φ = 2003634144.

The previous prime is 2107947923. The next prime is 2107947983. The reversal of 2107947979 is 9797497012.

It is a cyclic number.

It is not a de Polignac number, because 2107947979 - 2¹⁵ = 2107915211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2107947379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1597482 + ... + 1598800.

It is an arithmetic number, because the mean of its divisors is an integer number (138441600).

Almost surely, 2^2107947979 is an apocalyptic number.

2107947979 is a deficient number, since it is larger than the sum of its proper divisors (107117621).

2107947979 is a wasteful number, since it uses less digits than its factorization.

2107947979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322.

The product of its (nonzero) digits is 2000376, while the sum is 55.

The square root of 2107947979 is about 45912.3946119128. The cubic root of 2107947979 is about 1282.1926892446.

The spelling of 2107947979 in words is "two billion, one hundred seven million, nine hundred forty-seven thousand, nine hundred seventy-nine".