388697 has 2 divisors, whose sum is σ = 388698. Its totient is φ = 388696.

The previous prime is 388693. The next prime is 388699. The reversal of 388697 is 796883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 373321 + 15376 = 611^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 388697 - 2² = 388693 is a prime.

Together with 388699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (388691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194348 + 194349.

It is an arithmetic number, because the mean of its divisors is an integer number (194349).

2³⁸⁸⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

388697 is a deficient number, since it is larger than the sum of its proper divisors (1).

388697 is an equidigital number, since it uses as much as digits as its factorization.

388697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 388697 is about 623.4556920905. The cubic root of 388697 is about 72.9799782459.

The spelling of 388697 in words is "three hundred eighty-eight thousand, six hundred ninety-seven".