212072804 has 6 divisors (see below), whose sum is σ = 371127414. Its totient is φ = 106036400.

The previous prime is 212072803. The next prime is 212072821. The reversal of 212072804 is 408270212.

212072804 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 179560000 + 32512804 = 13400^2 + 5702^2 .

It is not an unprimeable number, because it can be changed into a prime (212072801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26509097 + ... + 26509104.

It is an arithmetic number, because the mean of its divisors is an integer number (61854569).

Almost surely, 2^212072804 is an apocalyptic number.

It is an amenable number.

212072804 is a deficient number, since it is larger than the sum of its proper divisors (159054610).

212072804 is a wasteful number, since it uses less digits than its factorization.

212072804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53018205 (or 53018203 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 212072804 is about 14562.7196635793. The cubic root of 212072804 is about 596.3414443677.

The spelling of 212072804 in words is "two hundred twelve million, seventy-two thousand, eight hundred four".