36631223 has 2 divisors, whose sum is σ = 36631224. Its totient is φ = 36631222.

The previous prime is 36631219. The next prime is 36631247. The reversal of 36631223 is 32213663.

It is a weak prime.

36631223 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 36631223 - 2² = 36631219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36631192 and 36631201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36631253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18315611 + 18315612.

It is an arithmetic number, because the mean of its divisors is an integer number (18315612).

Almost surely, 2^36631223 is an apocalyptic number.

36631223 is a deficient number, since it is larger than the sum of its proper divisors (1).

36631223 is an equidigital number, since it uses as much as digits as its factorization.

36631223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 26.

The square root of 36631223 is about 6052.3733361385. The cubic root of 36631223 is about 332.1114174603. Note that the first 3 decimals are identical.

Adding to 36631223 its reverse (32213663), we get a palindrome (68844886).

The spelling of 36631223 in words is "thirty-six million, six hundred thirty-one thousand, two hundred twenty-three".