211084947 has 10 divisors (see below), whose sum is σ = 315324548. Its totient is φ = 140723244.

The previous prime is 211084891. The next prime is 211084967. The reversal of 211084947 is 749480112.

211084947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211084947 - 2⁶ = 211084883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211084967) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1302913 + ... + 1303074.

Almost surely, 2^211084947 is an apocalyptic number.

211084947 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

211084947 is a deficient number, since it is larger than the sum of its proper divisors (104239601).

211084947 is an equidigital number, since it uses as much as digits as its factorization.

211084947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605999 (or 2605990 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 211084947 is about 14528.7627484242. The cubic root of 211084947 is about 595.4140629373.

The spelling of 211084947 in words is "two hundred eleven million, eighty-four thousand, nine hundred forty-seven".