393670 has 8 divisors (see below), whose sum is σ = 708624. Its totient is φ = 157464.

The previous prime is 393667. The next prime is 393671. The reversal of 393670 is 76393.

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

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19674 + ... + 19693.

It is an arithmetic number, because the mean of its divisors is an integer number (88578).

2³⁹³⁶⁷⁰ is an apocalyptic number.

393670 is a deficient number, since it is larger than the sum of its proper divisors (314954).

393670 is a wasteful number, since it uses less digits than its factorization.

393670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39374.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 393670 is about 627.4312711365. The cubic root of 393670 is about 73.2898962230.

The spelling of 393670 in words is "three hundred ninety-three thousand, six hundred seventy".