36638601 has 4 divisors (see below), whose sum is σ = 48851472. Its totient is φ = 24425732.

The previous prime is 36638597. The next prime is 36638603. The reversal of 36638601 is 10683663.

36638601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10683663 = 3 ⋅3561221.

It is a cyclic number.

It is not a de Polignac number, because 36638601 - 2² = 36638597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36638603) 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, 6106431 + ... + 6106436.

It is an arithmetic number, because the mean of its divisors is an integer number (12212868).

Almost surely, 2^36638601 is an apocalyptic number.

It is an amenable number.

36638601 is a deficient number, since it is larger than the sum of its proper divisors (12212871).

36638601 is a wasteful number, since it uses less digits than its factorization.

36638601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12212870.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 36638601 is about 6052.9828184128. The cubic root of 36638601 is about 332.1337131354.

The spelling of 36638601 in words is "thirty-six million, six hundred thirty-eight thousand, six hundred one".