211685948 has 12 divisors (see below), whose sum is σ = 370681080. Its totient is φ = 105777072.

The previous prime is 211685941. The next prime is 211685977. The reversal of 211685948 is 849586112.

It is a junction number, because it is equal to n+sod(n) for n = 211685899 and 211685908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211685941) 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, 8858 + ... + 22401.

It is an arithmetic number, because the mean of its divisors is an integer number (30890090).

Almost surely, 2^211685948 is an apocalyptic number.

It is an amenable number.

211685948 is a deficient number, since it is larger than the sum of its proper divisors (158995132).

211685948 is a wasteful number, since it uses less digits than its factorization.

211685948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32956 (or 32954 counting only the distinct ones).

The product of its digits is 138240, while the sum is 44.

The square root of 211685948 is about 14549.4311916308. The cubic root of 211685948 is about 595.9786150608.

The spelling of 211685948 in words is "two hundred eleven million, six hundred eighty-five thousand, nine hundred forty-eight".