36642443 has 2 divisors, whose sum is σ = 36642444. Its totient is φ = 36642442.

The previous prime is 36642439. The next prime is 36642449. The reversal of 36642443 is 34424663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36642443 - 2² = 36642439 is a prime.

It is not a weakly prime, because it can be changed into another prime (36642449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18321221 + 18321222.

It is an arithmetic number, because the mean of its divisors is an integer number (18321222).

Almost surely, 2^36642443 is an apocalyptic number.

36642443 is a deficient number, since it is larger than the sum of its proper divisors (1).

36642443 is an equidigital number, since it uses as much as digits as its factorization.

36642443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 32.

The square root of 36642443 is about 6053.3001742851. The cubic root of 36642443 is about 332.1453221406.

The spelling of 36642443 in words is "thirty-six million, six hundred forty-two thousand, four hundred forty-three".