211447047 has 8 divisors (see below), whose sum is σ = 322205056. Its totient is φ = 120826872.

The previous prime is 211447043. The next prime is 211447057. The reversal of 211447047 is 740744112.

211447047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 211447047 - 2² = 211447043 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 (211447043) 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, 5034433 + ... + 5034474.

It is an arithmetic number, because the mean of its divisors is an integer number (40275632).

Almost surely, 2^211447047 is an apocalyptic number.

211447047 is a deficient number, since it is larger than the sum of its proper divisors (110758009).

211447047 is a wasteful number, since it uses less digits than its factorization.

211447047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068917.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 211447047 is about 14541.2188966400. The cubic root of 211447047 is about 595.7543307950.

The spelling of 211447047 in words is "two hundred eleven million, four hundred forty-seven thousand, forty-seven".