388937 has 2 divisors, whose sum is σ = 388938. Its totient is φ = 388936.

The previous prime is 388933. The next prime is 388961. The reversal of 388937 is 739883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383161 + 5776 = 619^2 + 76^2 .

It is a cyclic number.

It is not a de Polignac number, because 388937 - 2² = 388933 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 388937.

It is not a weakly prime, because it can be changed into another prime (388931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194468 + 194469.

It is an arithmetic number, because the mean of its divisors is an integer number (194469).

388937 is a Friedman number, since it can be written as 73^3-8-9*8, using all its digits and the basic arithmetic operations.

2³⁸⁸⁹³⁷ is an apocalyptic number.

It is an amenable number.

388937 is a deficient number, since it is larger than the sum of its proper divisors (1).

388937 is an equidigital number, since it uses as much as digits as its factorization.

388937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 388937 is about 623.6481379753. The cubic root of 388937 is about 72.9949955911.

The spelling of 388937 in words is "three hundred eighty-eight thousand, nine hundred thirty-seven".