393671 has 2 divisors, whose sum is σ = 393672. Its totient is φ = 393670.

The previous prime is 393667. The next prime is 393677. The reversal of 393671 is 176393.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 393671 - 2² = 393667 is a prime.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (393677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196835 + 196836.

It is an arithmetic number, because the mean of its divisors is an integer number (196836).

2³⁹³⁶⁷¹ is an apocalyptic number.

393671 is a deficient number, since it is larger than the sum of its proper divisors (1).

393671 is an equidigital number, since it uses as much as digits as its factorization.

393671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 29.

The square root of 393671 is about 627.4320680361. The cubic root of 393671 is about 73.2899582799.

The spelling of 393671 in words is "three hundred ninety-three thousand, six hundred seventy-one".