36648239 has 2 divisors, whose sum is σ = 36648240. Its totient is φ = 36648238.

The previous prime is 36648221. The next prime is 36648289. The reversal of 36648239 is 93284663.

It is a weak prime.

It is an emirp because it is prime and its reverse (93284663) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36648239 is a prime.

It is a super-2 number, since 2×36648239² = 2686186843602242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36648196 and 36648205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36648289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18324119 + 18324120.

It is an arithmetic number, because the mean of its divisors is an integer number (18324120).

Almost surely, 2^36648239 is an apocalyptic number.

36648239 is a deficient number, since it is larger than the sum of its proper divisors (1).

36648239 is an equidigital number, since it uses as much as digits as its factorization.

36648239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 41.

The square root of 36648239 is about 6053.7789024708. The cubic root of 36648239 is about 332.1628338259.

The spelling of 36648239 in words is "thirty-six million, six hundred forty-eight thousand, two hundred thirty-nine".