36421003 has 2 divisors, whose sum is σ = 36421004. Its totient is φ = 36421002.

The previous prime is 36420977. The next prime is 36421009. The reversal of 36421003 is 30012463.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36421003 - 2¹³ = 36412811 is a prime.

It is not a weakly prime, because it can be changed into another prime (36421009) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18210501 + 18210502.

It is an arithmetic number, because the mean of its divisors is an integer number (18210502).

Almost surely, 2^36421003 is an apocalyptic number.

36421003 is a deficient number, since it is larger than the sum of its proper divisors (1).

36421003 is an equidigital number, since it uses as much as digits as its factorization.

36421003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 36421003 is about 6034.9816072628. The cubic root of 36421003 is about 331.4748890327.

Adding to 36421003 its reverse (30012463), we get a palindrome (66433466).

The spelling of 36421003 in words is "thirty-six million, four hundred twenty-one thousand, three".