211047290 has 8 divisors (see below), whose sum is σ = 379885140. Its totient is φ = 84418912.

The previous prime is 211047289. The next prime is 211047301. The reversal of 211047290 is 92740112.

211047290 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 191075329 + 19971961 = 13823^2 + 4469^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10552355 + ... + 10552374.

Almost surely, 2^211047290 is an apocalyptic number.

211047290 is a deficient number, since it is larger than the sum of its proper divisors (168837850).

211047290 is a wasteful number, since it uses less digits than its factorization.

211047290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21104736.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 211047290 is about 14527.4667440679. The cubic root of 211047290 is about 595.3786540634.

The spelling of 211047290 in words is "two hundred eleven million, forty-seven thousand, two hundred ninety".