36670409 has 2 divisors, whose sum is σ = 36670410. Its totient is φ = 36670408.

The previous prime is 36670397. The next prime is 36670429. The reversal of 36670409 is 90407663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28858384 + 7812025 = 5372^2 + 2795^2 .

It is a cyclic number.

It is not a de Polignac number, because 36670409 - 2⁴ = 36670393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (36670429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18335204 + 18335205.

It is an arithmetic number, because the mean of its divisors is an integer number (18335205).

Almost surely, 2^36670409 is an apocalyptic number.

It is an amenable number.

36670409 is a deficient number, since it is larger than the sum of its proper divisors (1).

36670409 is an equidigital number, since it uses as much as digits as its factorization.

36670409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 36670409 is about 6055.6097133154. The cubic root of 36670409 is about 332.2297998957.

The spelling of 36670409 in words is "thirty-six million, six hundred seventy thousand, four hundred nine".