211920693 has 8 divisors (see below), whose sum is σ = 282868800. Its totient is φ = 141126528.

The previous prime is 211920673. The next prime is 211920703. The reversal of 211920693 is 396029112.

211920693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 211920693 - 2⁶ = 211920629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211920673) 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, 35233 + ... + 40806.

It is an arithmetic number, because the mean of its divisors is an integer number (35358600).

Almost surely, 2^211920693 is an apocalyptic number.

It is an amenable number.

211920693 is a deficient number, since it is larger than the sum of its proper divisors (70948107).

211920693 is an equidigital number, since it uses as much as digits as its factorization.

211920693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76971.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 211920693 is about 14557.4961102519. The cubic root of 211920693 is about 596.1988332959.

The spelling of 211920693 in words is "two hundred eleven million, nine hundred twenty thousand, six hundred ninety-three".