2206992779 has 8 divisors (see below), whose sum is σ = 2222548992. Its totient is φ = 2191461480.

The previous prime is 2206992707. The next prime is 2206992787. The reversal of 2206992779 is 9772996022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2206992779 - 2¹⁶ = 2206927243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2206992779.

It is not an unprimeable number, because it can be changed into a prime (2206992079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193814 + ... + 204884.

It is an arithmetic number, because the mean of its divisors is an integer number (277818624).

Almost surely, 2^2206992779 is an apocalyptic number.

2206992779 is a deficient number, since it is larger than the sum of its proper divisors (15556213).

2206992779 is a wasteful number, since it uses less digits than its factorization.

2206992779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12457.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The square root of 2206992779 is about 46978.6417321744. The cubic root of 2206992779 is about 1301.9679816305.

The spelling of 2206992779 in words is "two billion, two hundred six million, nine hundred ninety-two thousand, seven hundred seventy-nine".