387418 has 8 divisors (see below), whose sum is σ = 587412. Its totient is φ = 191616.

The previous prime is 387403. The next prime is 387433. The reversal of 387418 is 814783.

It is a happy number.

387418 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (387403) and next prime (387433).

It can be written as a sum of positive squares in 2 ways, for example, as 344569 + 42849 = 587^2 + 207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 387418.

It is an unprimeable number.

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, 805 + ... + 1192.

2³⁸⁷⁴¹⁸ is an apocalyptic number.

387418 is a deficient number, since it is larger than the sum of its proper divisors (199994).

387418 is a wasteful number, since it uses less digits than its factorization.

387418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096.

The product of its digits is 5376, while the sum is 31.

The square root of 387418 is about 622.4291124297. The cubic root of 387418 is about 72.8998438832.

The spelling of 387418 in words is "three hundred eighty-seven thousand, four hundred eighteen".