211047829 has 4 divisors (see below), whose sum is σ = 211656384. Its totient is φ = 210439276.

The previous prime is 211047817. The next prime is 211047833. The reversal of 211047829 is 928740112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211047829 - 2¹¹ = 211045781 is a prime.

It is a super-2 number, since 2×211047829² = 89082372251226482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211047794 and 211047803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211047929) 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 3 ways as a sum of consecutive naturals, for example, 303757 + ... + 304450.

It is an arithmetic number, because the mean of its divisors is an integer number (52914096).

Almost surely, 2^211047829 is an apocalyptic number.

It is an amenable number.

211047829 is a deficient number, since it is larger than the sum of its proper divisors (608555).

211047829 is an equidigital number, since it uses as much as digits as its factorization.

211047829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608554.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 211047829 is about 14527.4852951225. The cubic root of 211047829 is about 595.3791609148.

The spelling of 211047829 in words is "two hundred eleven million, forty-seven thousand, eight hundred twenty-nine".