212884929 has 20 divisors (see below), whose sum is σ = 322767984. Its totient is φ = 139801464.

The previous prime is 212884927. The next prime is 212884951. The reversal of 212884929 is 929488212.

It is a happy number.

It is not a de Polignac number, because 212884929 - 2¹ = 212884927 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212884927) 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 19 ways as a sum of consecutive naturals, for example, 14187 + ... + 25040.

Almost surely, 2^212884929 is an apocalyptic number.

It is an amenable number.

212884929 is a deficient number, since it is larger than the sum of its proper divisors (109883055).

212884929 is an equidigital number, since it uses as much as digits as its factorization.

212884929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39306 (or 39297 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 212884929 is about 14590.5767192390. The cubic root of 212884929 is about 597.1016972783.

The spelling of 212884929 in words is "two hundred twelve million, eight hundred eighty-four thousand, nine hundred twenty-nine".