393612 has 12 divisors (see below), whose sum is σ = 918456. Its totient is φ = 131200.

The previous prime is 393611. The next prime is 393629. The reversal of 393612 is 216393.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (393611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16389 + ... + 16412.

It is an arithmetic number, because the mean of its divisors is an integer number (76538).

2³⁹³⁶¹² is an apocalyptic number.

It is an amenable number.

393612 is an abundant number, since it is smaller than the sum of its proper divisors (524844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

393612 is a wasteful number, since it uses less digits than its factorization.

393612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32808 (or 32806 counting only the distinct ones).

The product of its digits is 972, while the sum is 24.

The square root of 393612 is about 627.3850492321. The cubic root of 393612 is about 73.2862967422.

The spelling of 393612 in words is "three hundred ninety-three thousand, six hundred twelve".