396544 has 18 divisors (see below), whose sum is σ = 792050. Its totient is φ = 198144.

The previous prime is 396541. The next prime is 396547. The reversal of 396544 is 445693.

It is an interprime number because it is at equal distance from previous prime (396541) and next prime (396547).

It can be written as a sum of positive squares in only one way, i.e., 313600 + 82944 = 560^2 + 288^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519 + ... + 1030.

2³⁹⁶⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

396544 is a deficient number, since it is larger than the sum of its proper divisors (395506).

396544 is an equidigital number, since it uses as much as digits as its factorization.

396544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565 (or 1551 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 396544 is about 629.7173969329. The cubic root of 396544 is about 73.4678156714.

The spelling of 396544 in words is "three hundred ninety-six thousand, five hundred forty-four".