393672212 has 12 divisors (see below), whose sum is σ = 689106516. Its totient is φ = 196784640.

The previous prime is 393672199. The next prime is 393672217. The reversal of 393672212 is 212276393.

It can be written as a sum of positive squares in 2 ways, for example, as 385572496 + 8099716 = 19636^2 + 2846^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393672217) 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 3 ways as a sum of consecutive naturals, for example, 8162 + ... + 29222.

It is an arithmetic number, because the mean of its divisors is an integer number (57425543).

Almost surely, 2^393672212 is an apocalyptic number.

It is an amenable number.

393672212 is a deficient number, since it is larger than the sum of its proper divisors (295434304).

393672212 is a wasteful number, since it uses less digits than its factorization.

393672212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25738 (or 25736 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The square root of 393672212 is about 19841.1746628066. The cubic root of 393672212 is about 732.9003349272.

The spelling of 393672212 in words is "three hundred ninety-three million, six hundred seventy-two thousand, two hundred twelve".