36421393 has 2 divisors, whose sum is σ = 36421394. Its totient is φ = 36421392.

The previous prime is 36421339. The next prime is 36421417. The reversal of 36421393 is 39312463.

Together with previous prime (36421339) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20684304 + 15737089 = 4548^2 + 3967^2 .

It is a cyclic number.

It is not a de Polignac number, because 36421393 - 2¹⁷ = 36290321 is a prime.

It is not a weakly prime, because it can be changed into another prime (36421493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18210696 + 18210697.

It is an arithmetic number, because the mean of its divisors is an integer number (18210697).

Almost surely, 2^36421393 is an apocalyptic number.

It is an amenable number.

36421393 is a deficient number, since it is larger than the sum of its proper divisors (1).

36421393 is an equidigital number, since it uses as much as digits as its factorization.

36421393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 31.

The square root of 36421393 is about 6035.0139187909. The cubic root of 36421393 is about 331.4760721847.

The spelling of 36421393 in words is "thirty-six million, four hundred twenty-one thousand, three hundred ninety-three".