212753723 has 16 divisors (see below), whose sum is σ = 267945216. Its totient is φ = 164414880.

The previous prime is 212753719. The next prime is 212753729. The reversal of 212753723 is 327357212.

It is not a de Polignac number, because 212753723 - 2² = 212753719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212753723.

It is not an unprimeable number, because it can be changed into a prime (212753729) by changing a digit.

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, 23273 + ... + 31098.

It is an arithmetic number, because the mean of its divisors is an integer number (16746576).

Almost surely, 2^212753723 is an apocalyptic number.

212753723 is a deficient number, since it is larger than the sum of its proper divisors (55191493).

212753723 is a wasteful number, since it uses less digits than its factorization.

212753723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54434.

The product of its digits is 17640, while the sum is 32.

The square root of 212753723 is about 14586.0797680528. The cubic root of 212753723 is about 596.9790027846.

The spelling of 212753723 in words is "two hundred twelve million, seven hundred fifty-three thousand, seven hundred twenty-three".