36673421 has 2 divisors, whose sum is σ = 36673422. Its totient is φ = 36673420.

The previous prime is 36673381. The next prime is 36673423. The reversal of 36673421 is 12437663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21031396 + 15642025 = 4586^2 + 3955^2 .

It is a cyclic number.

It is not a de Polignac number, because 36673421 - 2¹⁰ = 36672397 is a prime.

Together with 36673423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36673423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18336710 + 18336711.

It is an arithmetic number, because the mean of its divisors is an integer number (18336711).

Almost surely, 2^36673421 is an apocalyptic number.

It is an amenable number.

36673421 is a deficient number, since it is larger than the sum of its proper divisors (1).

36673421 is an equidigital number, since it uses as much as digits as its factorization.

36673421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 36673421 is about 6055.8584032324. The cubic root of 36673421 is about 332.2388957742.

The spelling of 36673421 in words is "thirty-six million, six hundred seventy-three thousand, four hundred twenty-one".