36721417 has 2 divisors, whose sum is σ = 36721418. Its totient is φ = 36721416.

The previous prime is 36721403. The next prime is 36721439. The reversal of 36721417 is 71412763.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28987456 + 7733961 = 5384^2 + 2781^2 .

It is a cyclic number.

It is not a de Polignac number, because 36721417 - 2¹¹ = 36719369 is a prime.

It is not a weakly prime, because it can be changed into another prime (36701417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18360708 + 18360709.

It is an arithmetic number, because the mean of its divisors is an integer number (18360709).

Almost surely, 2^36721417 is an apocalyptic number.

It is an amenable number.

36721417 is a deficient number, since it is larger than the sum of its proper divisors (1).

36721417 is an equidigital number, since it uses as much as digits as its factorization.

36721417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 31.

The square root of 36721417 is about 6059.8198818117. The cubic root of 36721417 is about 332.3837707837.

The spelling of 36721417 in words is "thirty-six million, seven hundred twenty-one thousand, four hundred seventeen".