36673691 has 2 divisors, whose sum is σ = 36673692. Its totient is φ = 36673690.

The previous prime is 36673673. The next prime is 36673727. The reversal of 36673691 is 19637663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36673691 - 2¹⁰ = 36672667 is a prime.

It is a super-2 number, since 2×36673691² = 2689919223126962, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (36673631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18336845 + 18336846.

It is an arithmetic number, because the mean of its divisors is an integer number (18336846).

Almost surely, 2^36673691 is an apocalyptic number.

36673691 is a deficient number, since it is larger than the sum of its proper divisors (1).

36673691 is an equidigital number, since it uses as much as digits as its factorization.

36673691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 41.

The square root of 36673691 is about 6055.8806956544. The cubic root of 36673691 is about 332.2397111175.

The spelling of 36673691 in words is "thirty-six million, six hundred seventy-three thousand, six hundred ninety-one".