387404 has 6 divisors (see below), whose sum is σ = 677964. Its totient is φ = 193700.

The previous prime is 387403. The next prime is 387433. The reversal of 387404 is 404783.

It is an Ulam number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (387403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48422 + ... + 48429.

It is an arithmetic number, because the mean of its divisors is an integer number (112994).

2³⁸⁷⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

387404 is a deficient number, since it is larger than the sum of its proper divisors (290560).

387404 is a wasteful number, since it uses less digits than its factorization.

387404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96855 (or 96853 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 387404 is about 622.4178660675. The cubic root of 387404 is about 72.8989657532.

The spelling of 387404 in words is "three hundred eighty-seven thousand, four hundred four".