36638069 has 8 divisors (see below), whose sum is σ = 39606840. Its totient is φ = 33690816.

The previous prime is 36638039. The next prime is 36638081. The reversal of 36638069 is 96083663.

It can be written as a sum of positive squares in 4 ways, for example, as 180625 + 36457444 = 425^2 + 6038^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36638069 - 2⁸ = 36637813 is a prime.

It is a super-2 number, since 2×36638069² = 2684696200097522, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36638039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1742 + ... + 8735.

It is an arithmetic number, because the mean of its divisors is an integer number (4950855).

Almost surely, 2^36638069 is an apocalyptic number.

It is an amenable number.

36638069 is a deficient number, since it is larger than the sum of its proper divisors (2968771).

36638069 is a wasteful number, since it uses less digits than its factorization.

36638069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10759.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 36638069 is about 6052.9388729773. The cubic root of 36638069 is about 332.1321055778.

The spelling of 36638069 in words is "thirty-six million, six hundred thirty-eight thousand, sixty-nine".