212712790 has 32 divisors (see below), whose sum is σ = 406840320. Its totient is φ = 79845984.

The previous prime is 212712769. The next prime is 212712803. The reversal of 212712790 is 97217212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15099 + ... + 25561.

It is an arithmetic number, because the mean of its divisors is an integer number (12713760).

Almost surely, 2^212712790 is an apocalyptic number.

212712790 is a deficient number, since it is larger than the sum of its proper divisors (194127530).

212712790 is a wasteful number, since it uses less digits than its factorization.

212712790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10596.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 212712790 is about 14584.6765476647. The cubic root of 212712790 is about 596.9407148392.

The spelling of 212712790 in words is "two hundred twelve million, seven hundred twelve thousand, seven hundred ninety".