386993 has 2 divisors, whose sum is σ = 386994. Its totient is φ = 386992.

The previous prime is 386989. The next prime is 387007. The reversal of 386993 is 399683.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 351649 + 35344 = 593^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 386993 - 2² = 386989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (386963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193496 + 193497.

It is an arithmetic number, because the mean of its divisors is an integer number (193497).

2³⁸⁶⁹⁹³ is an apocalyptic number.

It is an amenable number.

386993 is a deficient number, since it is larger than the sum of its proper divisors (1).

386993 is an equidigital number, since it uses as much as digits as its factorization.

386993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 38.

The square root of 386993 is about 622.0876144081. The cubic root of 386993 is about 72.8731769328.

The spelling of 386993 in words is "three hundred eighty-six thousand, nine hundred ninety-three".