2166874347 has 16 divisors (see below), whose sum is σ = 3196212480. Its totient is φ = 1294759200.

The previous prime is 2166874343. The next prime is 2166874357. The reversal of 2166874347 is 7434786612.

It is a happy number.

It is not a de Polignac number, because 2166874347 - 2² = 2166874343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2166874296 and 2166874305.

It is not an unprimeable number, because it can be changed into a prime (2166874343) 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, 460072 + ... + 464757.

It is an arithmetic number, because the mean of its divisors is an integer number (199763280).

Almost surely, 2^2166874347 is an apocalyptic number.

2166874347 is a deficient number, since it is larger than the sum of its proper divisors (1029338133).

2166874347 is a wasteful number, since it uses less digits than its factorization.

2166874347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924914.

The product of its digits is 1354752, while the sum is 48.

The square root of 2166874347 is about 46549.6976037439. The cubic root of 2166874347 is about 1294.0306888098.

The spelling of 2166874347 in words is "two billion, one hundred sixty-six million, eight hundred seventy-four thousand, three hundred forty-seven".