396549 has 16 divisors (see below), whose sum is σ = 619200. Its totient is φ = 250128.

The previous prime is 396547. The next prime is 396563. The reversal of 396549 is 945693.

396549 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 396549 - 2¹ = 396547 is a prime.

It is a super-2 number, since 2×396549² = 314502218802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

396549 is strictly pandigital in base 7.

It is a Curzon number.

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 (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127 + ... + 899.

It is an arithmetic number, because the mean of its divisors is an integer number (38700).

2³⁹⁶⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

396549 is a deficient number, since it is larger than the sum of its proper divisors (222651).

396549 is a wasteful number, since it uses less digits than its factorization.

396549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801 (or 795 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 396549 is about 629.7213669553. The cubic root of 396549 is about 73.4681244539.

The spelling of 396549 in words is "three hundred ninety-six thousand, five hundred forty-nine".