388973 has 4 divisors (see below), whose sum is σ = 418908. Its totient is φ = 359040.

The previous prime is 388963. The next prime is 388991. The reversal of 388973 is 379883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 379883 = 7 ⋅54269.

It can be written as a sum of positive squares in 2 ways, for example, as 145924 + 243049 = 382^2 + 493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14948 + ... + 14973.

It is an arithmetic number, because the mean of its divisors is an integer number (104727).

2³⁸⁸⁹⁷³ is an apocalyptic number.

It is an amenable number.

388973 is a deficient number, since it is larger than the sum of its proper divisors (29935).

388973 is a wasteful number, since it uses less digits than its factorization.

388973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29934.

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

The square root of 388973 is about 623.6769997362. The cubic root of 388973 is about 72.9972476600.

The spelling of 388973 in words is "three hundred eighty-eight thousand, nine hundred seventy-three".