936366421 has 2 divisors, whose sum is σ = 936366422. Its totient is φ = 936366420.

The previous prime is 936366391. The next prime is 936366427. The reversal of 936366421 is 124663639.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 804346321 + 132020100 = 28361^2 + 11490^2 .

It is an emirp because it is prime and its reverse (124663639) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 936366421 - 2⁹ = 936365909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (936366427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 468183210 + 468183211.

It is an arithmetic number, because the mean of its divisors is an integer number (468183211).

Almost surely, 2^936366421 is an apocalyptic number.

It is an amenable number.

936366421 is a deficient number, since it is larger than the sum of its proper divisors (1).

936366421 is an equidigital number, since it uses as much as digits as its factorization.

936366421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 40.

The square root of 936366421 is about 30600.1049181208. The cubic root of 936366421 is about 978.3222790380.

The spelling of 936366421 in words is "nine hundred thirty-six million, three hundred sixty-six thousand, four hundred twenty-one".