440623087 has 2 divisors, whose sum is σ = 440623088. Its totient is φ = 440623086.

The previous prime is 440623063. The next prime is 440623093. The reversal of 440623087 is 780326044.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440623087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440623037) 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, 220311543 + 220311544.

It is an arithmetic number, because the mean of its divisors is an integer number (220311544).

Almost surely, 2^440623087 is an apocalyptic number.

440623087 is a deficient number, since it is larger than the sum of its proper divisors (1).

440623087 is an equidigital number, since it uses as much as digits as its factorization.

440623087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 440623087 is about 20991.0239626370. The cubic root of 440623087 is about 760.9493486065.

The spelling of 440623087 in words is "four hundred forty million, six hundred twenty-three thousand, eighty-seven".