36723217 has 2 divisors, whose sum is σ = 36723218. Its totient is φ = 36723216.

The previous prime is 36723199. The next prime is 36723221. The reversal of 36723217 is 71232763.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34292736 + 2430481 = 5856^2 + 1559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36723217 is a prime.

It is equal to p_2245774 and since 36723217 and 2245774 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (36723317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18361608 + 18361609.

It is an arithmetic number, because the mean of its divisors is an integer number (18361609).

Almost surely, 2^36723217 is an apocalyptic number.

It is an amenable number.

36723217 is a deficient number, since it is larger than the sum of its proper divisors (1).

36723217 is an equidigital number, since it uses as much as digits as its factorization.

36723217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 31.

The square root of 36723217 is about 6059.9683992575. The cubic root of 36723217 is about 332.3892015927.

It can be divided in two parts, 3672 and 3217, that added together give a square (6889 = 83²).

The spelling of 36723217 in words is "thirty-six million, seven hundred twenty-three thousand, two hundred seventeen".