2179379399 has 8 divisors (see below), whose sum is σ = 2209317120. Its totient is φ = 2149500600.

The previous prime is 2179379387. The next prime is 2179379407. The reversal of 2179379399 is 9939739712.

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 2179379399 - 2⁴ = 2179379383 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 (2179379339) 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, 62504 + ... + 90914.

It is an arithmetic number, because the mean of its divisors is an integer number (276164640).

Almost surely, 2^2179379399 is an apocalyptic number.

2179379399 is a deficient number, since it is larger than the sum of its proper divisors (29937721).

2179379399 is an equidigital number, since it uses as much as digits as its factorization.

2179379399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29461.

The product of its digits is 5786802, while the sum is 59.

The square root of 2179379399 is about 46683.8237401351. The cubic root of 2179379399 is about 1296.5152032477.

The spelling of 2179379399 in words is "two billion, one hundred seventy-nine million, three hundred seventy-nine thousand, three hundred ninety-nine".