36405623 has 2 divisors, whose sum is σ = 36405624. Its totient is φ = 36405622.

The previous prime is 36405599. The next prime is 36405637. The reversal of 36405623 is 32650463.

36405623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36405623 - 2¹² = 36401527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36404623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18202811 + 18202812.

It is an arithmetic number, because the mean of its divisors is an integer number (18202812).

Almost surely, 2^36405623 is an apocalyptic number.

36405623 is a deficient number, since it is larger than the sum of its proper divisors (1).

36405623 is an equidigital number, since it uses as much as digits as its factorization.

36405623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 36405623 is about 6033.7072351913. The cubic root of 36405623 is about 331.4282236368.

The spelling of 36405623 in words is "thirty-six million, four hundred five thousand, six hundred twenty-three".