636367 has 4 divisors (see below), whose sum is σ = 669880. Its totient is φ = 602856.

The previous prime is 636359. The next prime is 636403. The reversal of 636367 is 763636.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 636367 - 2³ = 636359 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 636367.

It is not an unprimeable number, because it can be changed into a prime (636967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16728 + ... + 16765.

It is an arithmetic number, because the mean of its divisors is an integer number (167470).

2⁶³⁶³⁶⁷ is an apocalyptic number.

636367 is a deficient number, since it is larger than the sum of its proper divisors (33513).

636367 is a wasteful number, since it uses less digits than its factorization.

636367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33512.

The product of its digits is 13608, while the sum is 31.

The square root of 636367 is about 797.7261434853. The cubic root of 636367 is about 86.0140143017.

The spelling of 636367 in words is "six hundred thirty-six thousand, three hundred sixty-seven".