211430667 has 8 divisors (see below), whose sum is σ = 322180096. Its totient is φ = 120817512.

The previous prime is 211430641. The next prime is 211430669. The reversal of 211430667 is 766034112.

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

It is not a de Polignac number, because 211430667 - 2⁷ = 211430539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211430669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5034043 + ... + 5034084.

It is an arithmetic number, because the mean of its divisors is an integer number (40272512).

Almost surely, 2^211430667 is an apocalyptic number.

211430667 is a deficient number, since it is larger than the sum of its proper divisors (110749429).

211430667 is a wasteful number, since it uses less digits than its factorization.

211430667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10068137.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 211430667 is about 14540.6556592198. The cubic root of 211430667 is about 595.7389467890.

Adding to 211430667 its reverse (766034112), we get a palindrome (977464779).

The spelling of 211430667 in words is "two hundred eleven million, four hundred thirty thousand, six hundred sixty-seven".