67636 has 12 divisors (see below), whose sum is σ = 121828. Its totient is φ = 32832.

The previous prime is 67631. The next prime is 67651. The reversal of 67636 is 63676.

It can be written as a sum of positive squares in 2 ways, for example, as 59536 + 8100 = 244^2 + 90^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67631) 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 in 3 ways as a sum of consecutive naturals, for example, 81 + ... + 376.

2⁶⁷⁶³⁶ is an apocalyptic number.

It is an amenable number.

67636 is a deficient number, since it is larger than the sum of its proper divisors (54192).

67636 is a wasteful number, since it uses less digits than its factorization.

67636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 496 counting only the distinct ones).

The product of its digits is 4536, while the sum is 28.

The square root of 67636 is about 260.0692215546. The cubic root of 67636 is about 40.7435911484.

It can be divided in two parts, 676 and 36, that multiplied together give a square (24336 = 156²).

The spelling of 67636 in words is "sixty-seven thousand, six hundred thirty-six".