396553 has 4 divisors (see below), whose sum is σ = 397828. Its totient is φ = 395280.

The previous prime is 396547. The next prime is 396563. The reversal of 396553 is 355693.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 355693 = 13 ⋅27361.

It can be written as a sum of positive squares in 2 ways, for example, as 299209 + 97344 = 547^2 + 312^2 .

It is a cyclic number.

It is not a de Polignac number, because 396553 - 2⁹ = 396041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175 + ... + 907.

It is an arithmetic number, because the mean of its divisors is an integer number (99457).

2³⁹⁶⁵⁵³ is an apocalyptic number.

It is an amenable number.

396553 is a deficient number, since it is larger than the sum of its proper divisors (1275).

396553 is an equidigital number, since it uses as much as digits as its factorization.

396553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274.

The product of its digits is 12150, while the sum is 31.

The square root of 396553 is about 629.7245429551. The cubic root of 396553 is about 73.4683714780.

It can be divided in two parts, 396 and 553, that added together give a palindrome (949).

The spelling of 396553 in words is "three hundred ninety-six thousand, five hundred fifty-three".