36640003 has 4 divisors (see below), whose sum is σ = 37261080. Its totient is φ = 36018928.

The previous prime is 36639997. The next prime is 36640007. The reversal of 36640003 is 30004663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30004663 = 13 ⋅2308051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36640003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36640007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310450 + ... + 310567.

It is an arithmetic number, because the mean of its divisors is an integer number (9315270).

Almost surely, 2^36640003 is an apocalyptic number.

36640003 is a deficient number, since it is larger than the sum of its proper divisors (621077).

36640003 is an equidigital number, since it uses as much as digits as its factorization.

36640003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621076.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 36640003 is about 6053.0986279756. The cubic root of 36640003 is about 332.1379495192.

Adding to 36640003 its reverse (30004663), we get a palindrome (66644666).

The spelling of 36640003 in words is "thirty-six million, six hundred forty thousand, three".