375646 has 4 divisors (see below), whose sum is σ = 563472. Its totient is φ = 187822.

The previous prime is 375643. The next prime is 375647. The reversal of 375646 is 646573.

375646 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 2×375646² = 282219834632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (375643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93910 + ... + 93913.

It is an arithmetic number, because the mean of its divisors is an integer number (140868).

2³⁷⁵⁶⁴⁶ is an apocalyptic number.

375646 is a deficient number, since it is larger than the sum of its proper divisors (187826).

375646 is a wasteful number, since it uses less digits than its factorization.

375646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187825.

The product of its digits is 15120, while the sum is 31.

The square root of 375646 is about 612.8996655245. The cubic root of 375646 is about 72.1538633480.

The spelling of 375646 in words is "three hundred seventy-five thousand, six hundred forty-six".