388497 has 4 divisors (see below), whose sum is σ = 518000. Its totient is φ = 258996.

The previous prime is 388489. The next prime is 388499. The reversal of 388497 is 794883.

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: 794883 = 3 ⋅264961.

It is not a de Polignac number, because 388497 - 2³ = 388489 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 388497.

It is not an unprimeable number, because it can be changed into a prime (388499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64747 + ... + 64752.

It is an arithmetic number, because the mean of its divisors is an integer number (129500).

2³⁸⁸⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

388497 is a deficient number, since it is larger than the sum of its proper divisors (129503).

388497 is a wasteful number, since it uses less digits than its factorization.

388497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129502.

The product of its digits is 48384, while the sum is 39.

The square root of 388497 is about 623.2952751305. The cubic root of 388497 is about 72.9674590688.

The spelling of 388497 in words is "three hundred eighty-eight thousand, four hundred ninety-seven".