211690006 has 16 divisors (see below), whose sum is σ = 350578368. Its totient is φ = 95062600.

The previous prime is 211689997. The next prime is 211690007. The reversal of 211690006 is 600096112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211690007) 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, 56140 + ... + 59791.

It is an arithmetic number, because the mean of its divisors is an integer number (21911148).

Almost surely, 2^211690006 is an apocalyptic number.

211690006 is a deficient number, since it is larger than the sum of its proper divisors (138888362).

211690006 is a wasteful number, since it uses less digits than its factorization.

211690006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116027.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 211690006 is about 14549.5706465861. The cubic root of 211690006 is about 595.9824233214.

The spelling of 211690006 in words is "two hundred eleven million, six hundred ninety thousand, six".