212672605 has 32 divisors (see below), whose sum is σ = 282839040. Its totient is φ = 152792640.

The previous prime is 212672599. The next prime is 212672609. The reversal of 212672605 is 506276212.

It is not a de Polignac number, because 212672605 - 2¹⁷ = 212541533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212672609) 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 31 ways as a sum of consecutive naturals, for example, 285864 + ... + 286606.

It is an arithmetic number, because the mean of its divisors is an integer number (8838720).

Almost surely, 2^212672605 is an apocalyptic number.

It is an amenable number.

212672605 is a deficient number, since it is larger than the sum of its proper divisors (70166435).

212672605 is a wasteful number, since it uses less digits than its factorization.

212672605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 212672605 is about 14583.2988380544. The cubic root of 212672605 is about 596.9031217802.

The spelling of 212672605 in words is "two hundred twelve million, six hundred seventy-two thousand, six hundred five".