211478692 has 12 divisors (see below), whose sum is σ = 377070876. Its totient is φ = 103744160.

The previous prime is 211478689. The next prime is 211478713. The reversal of 211478692 is 296874112.

211478692 is digitally balanced in base 3, because in such base 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 62980096 + 148498596 = 7936^2 + 12186^2 .

It is an unprimeable number.

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, 498559 + ... + 498982.

It is an arithmetic number, because the mean of its divisors is an integer number (31422573).

Almost surely, 2^211478692 is an apocalyptic number.

It is an amenable number.

211478692 is a deficient number, since it is larger than the sum of its proper divisors (165592184).

211478692 is a wasteful number, since it uses less digits than its factorization.

211478692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997598 (or 997596 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 211478692 is about 14542.3069696661. The cubic root of 211478692 is about 595.7840493552.

The spelling of 211478692 in words is "two hundred eleven million, four hundred seventy-eight thousand, six hundred ninety-two".