212744723 has 8 divisors (see below), whose sum is σ = 220310400. Its totient is φ = 205223040.

The previous prime is 212744717. The next prime is 212744743. The reversal of 212744723 is 327447212.

212744723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212744723 - 2²⁶ = 145635859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212744723.

It is not an unprimeable number, because it can be changed into a prime (212744713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998 + ... + 20651.

It is an arithmetic number, because the mean of its divisors is an integer number (27538800).

Almost surely, 2^212744723 is an apocalyptic number.

212744723 is a deficient number, since it is larger than the sum of its proper divisors (7565677).

212744723 is a wasteful number, since it uses less digits than its factorization.

212744723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21997.

The product of its digits is 18816, while the sum is 32.

The square root of 212744723 is about 14585.7712514628. The cubic root of 212744723 is about 596.9705847779.

The spelling of 212744723 in words is "two hundred twelve million, seven hundred forty-four thousand, seven hundred twenty-three".