211392385 has 8 divisors (see below), whose sum is σ = 267022080. Its totient is φ = 160213104.

The previous prime is 211392371. The next prime is 211392403. The reversal of 211392385 is 583293112.

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

It is a cyclic number.

It is not a de Polignac number, because 211392385 - 2¹⁷ = 211261313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211392385.

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 7 ways as a sum of consecutive naturals, for example, 1112497 + ... + 1112686.

It is an arithmetic number, because the mean of its divisors is an integer number (33377760).

Almost surely, 2^211392385 is an apocalyptic number.

It is an amenable number.

211392385 is a deficient number, since it is larger than the sum of its proper divisors (55629695).

211392385 is a wasteful number, since it uses less digits than its factorization.

211392385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225207.

The product of its digits is 12960, while the sum is 34.

The square root of 211392385 is about 14539.3392215740. The cubic root of 211392385 is about 595.7029894461.

The spelling of 211392385 in words is "two hundred eleven million, three hundred ninety-two thousand, three hundred eighty-five".