387446 has 4 divisors (see below), whose sum is σ = 581172. Its totient is φ = 193722.

The previous prime is 387437. The next prime is 387449. The reversal of 387446 is 644783.

It is a happy number.

387446 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×387446² = 300228805832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387449) by changing a digit.

387446 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96860 + ... + 96863.

It is an arithmetic number, because the mean of its divisors is an integer number (145293).

2³⁸⁷⁴⁴⁶ is an apocalyptic number.

387446 is a deficient number, since it is larger than the sum of its proper divisors (193726).

387446 is a wasteful number, since it uses less digits than its factorization.

387446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193725.

The product of its digits is 16128, while the sum is 32.

The square root of 387446 is about 622.4516045445. The cubic root of 387446 is about 72.9016000798.

The spelling of 387446 in words is "three hundred eighty-seven thousand, four hundred forty-six".