211670082 has 24 divisors (see below), whose sum is σ = 493897404. Its totient is φ = 65129184.

The previous prime is 211670033. The next prime is 211670087. The reversal of 211670082 is 280076112.

It can be written as a sum of positive squares in 2 ways, for example, as 148133241 + 63536841 = 12171^2 + 7971^2 .

It is a super-2 number, since 2×211670082² = 89608447227773448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211670087) 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 11 ways as a sum of consecutive naturals, for example, 452053 + ... + 452520.

Almost surely, 2^211670082 is an apocalyptic number.

211670082 is an abundant number, since it is smaller than the sum of its proper divisors (282227322).

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

211670082 is a wasteful number, since it uses less digits than its factorization.

211670082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904594 (or 904591 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 211670082 is about 14548.8859367307. The cubic root of 211670082 is about 595.9637250267.

The spelling of 211670082 in words is "two hundred eleven million, six hundred seventy thousand, eighty-two".