388357 has 4 divisors (see below), whose sum is σ = 393120. Its totient is φ = 383596.

The previous prime is 388351. The next prime is 388363. The reversal of 388357 is 753883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 753883 = 13 ⋅57991.

It is an interprime number because it is at equal distance from previous prime (388351) and next prime (388363).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388357 is a prime.

It is a Duffinian number.

388357 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388351) 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, 2257 + ... + 2422.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2³⁸⁸³⁵⁷ is an apocalyptic number.

It is an amenable number.

388357 is a deficient number, since it is larger than the sum of its proper divisors (4763).

388357 is an equidigital number, since it uses as much as digits as its factorization.

388357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762.

The product of its digits is 20160, while the sum is 34.

The square root of 388357 is about 623.1829586887. The cubic root of 388357 is about 72.9586930881.

The spelling of 388357 in words is "three hundred eighty-eight thousand, three hundred fifty-seven".