214699979 has 16 divisors (see below), whose sum is σ = 236561472. Its totient is φ = 193634688.

The previous prime is 214699921. The next prime is 214699993. The reversal of 214699979 is 979996412.

It is not a de Polignac number, because 214699979 - 2¹⁶ = 214634443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214699909) 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, 217922 + ... + 218904.

It is an arithmetic number, because the mean of its divisors is an integer number (14785092).

Almost surely, 2^214699979 is an apocalyptic number.

214699979 is a deficient number, since it is larger than the sum of its proper divisors (21861493).

214699979 is a wasteful number, since it uses less digits than its factorization.

214699979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366.

The product of its digits is 2204496, while the sum is 56.

The square root of 214699979 is about 14652.6440958620. The cubic root of 214699979 is about 598.7938538289.

The spelling of 214699979 in words is "two hundred fourteen million, six hundred ninety-nine thousand, nine hundred seventy-nine".