396436 has 6 divisors (see below), whose sum is σ = 693770. Its totient is φ = 198216.

The previous prime is 396427. The next prime is 396437. The reversal of 396436 is 634693.

396436 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 372100 + 24336 = 610^2 + 156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 396398 and 396407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396437) by changing a digit.

396436 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 49551 + ... + 49558.

2³⁹⁶⁴³⁶ is an apocalyptic number.

It is an amenable number.

396436 is a deficient number, since it is larger than the sum of its proper divisors (297334).

396436 is a wasteful number, since it uses less digits than its factorization.

396436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99113 (or 99111 counting only the distinct ones).

The product of its digits is 11664, while the sum is 31.

The square root of 396436 is about 629.6316383410. The cubic root of 396436 is about 73.4611453359.

The spelling of 396436 in words is "three hundred ninety-six thousand, four hundred thirty-six".