212979006 has 24 divisors (see below), whose sum is σ = 465771384. Its totient is φ = 70328880.

The previous prime is 212979001. The next prime is 212979017. The reversal of 212979006 is 600979212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212979001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53365 + ... + 57216.

It is an arithmetic number, because the mean of its divisors is an integer number (19407141).

Almost surely, 2^212979006 is an apocalyptic number.

212979006 is an abundant number, since it is smaller than the sum of its proper divisors (252792378).

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

212979006 is a wasteful number, since it uses less digits than its factorization.

212979006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110696 (or 110693 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 212979006 is about 14593.8002590141. The cubic root of 212979006 is about 597.1896403501.

It can be divided in two parts, 21297 and 9006, that added together give a palindrome (30303).

The spelling of 212979006 in words is "two hundred twelve million, nine hundred seventy-nine thousand, six".