213479863 has 8 divisors (see below), whose sum is σ = 226660032. Its totient is φ = 200368896.

The previous prime is 213479843. The next prime is 213479867. The reversal of 213479863 is 368974312.

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 213479863 - 2⁹ = 213479351 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 (213479867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10870 + ... + 23347.

It is an arithmetic number, because the mean of its divisors is an integer number (28332504).

Almost surely, 2^213479863 is an apocalyptic number.

213479863 is a deficient number, since it is larger than the sum of its proper divisors (13180169).

213479863 is a wasteful number, since it uses less digits than its factorization.

213479863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34601.

The product of its digits is 217728, while the sum is 43.

The square root of 213479863 is about 14610.9501059993. The cubic root of 213479863 is about 597.6574054696.

The spelling of 213479863 in words is "two hundred thirteen million, four hundred seventy-nine thousand, eight hundred sixty-three".