212087464 has 16 divisors (see below), whose sum is σ = 399025620. Its totient is φ = 105680640.

The previous prime is 212087459. The next prime is 212087467. The reversal of 212087464 is 464780212.

It is a happy number.

212087464 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 2 ways, for example, as 211935364 + 152100 = 14558^2 + 390^2 .

It is not an unprimeable number, because it can be changed into a prime (212087467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42897 + ... + 47584.

Almost surely, 2^212087464 is an apocalyptic number.

It is an amenable number.

212087464 is a deficient number, since it is larger than the sum of its proper divisors (186938156).

212087464 is a wasteful number, since it uses less digits than its factorization.

212087464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90780 (or 90776 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 212087464 is about 14563.2229949280. Note that the first 3 decimals coincide. The cubic root of 212087464 is about 596.3551851900.

The spelling of 212087464 in words is "two hundred twelve million, eighty-seven thousand, four hundred sixty-four".