211673028 has 48 divisors (see below), whose sum is σ = 565483520. Its totient is φ = 60368544.

The previous prime is 211673023. The next prime is 211673029. The reversal of 211673028 is 820376112.

It is a junction number, because it is equal to n+sod(n) for n = 211672986 and 211673004.

It is not an unprimeable number, because it can be changed into a prime (211673023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52053 + ... + 55971.

Almost surely, 2^211673028 is an apocalyptic number.

211673028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

211673028 is an abundant number, since it is smaller than the sum of its proper divisors (353810492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211673028 is a wasteful number, since it uses less digits than its factorization.

211673028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576 (or 4574 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 211673028 is about 14548.9871812439. The cubic root of 211673028 is about 595.9664898655.

The spelling of 211673028 in words is "two hundred eleven million, six hundred seventy-three thousand, twenty-eight".