387497 has 4 divisors (see below), whose sum is σ = 422736. Its totient is φ = 352260.

The previous prime is 387493. The next prime is 387503. The reversal of 387497 is 794783.

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: 794783 = 11 ⋅72253.

It is a cyclic number.

It is not a de Polignac number, because 387497 - 2² = 387493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 387497.

It is not an unprimeable number, because it can be changed into a prime (387493) 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, 17603 + ... + 17624.

It is an arithmetic number, because the mean of its divisors is an integer number (105684).

2³⁸⁷⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

387497 is a deficient number, since it is larger than the sum of its proper divisors (35239).

387497 is a wasteful number, since it uses less digits than its factorization.

387497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35238.

The product of its digits is 42336, while the sum is 38.

The square root of 387497 is about 622.4925702368. The cubic root of 387497 is about 72.9047986489.

The spelling of 387497 in words is "three hundred eighty-seven thousand, four hundred ninety-seven".