424402087 has 2 divisors, whose sum is σ = 424402088. Its totient is φ = 424402086.

The previous prime is 424402067. The next prime is 424402091. The reversal of 424402087 is 780204424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424402087 - 2¹⁹ = 423877799 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424402007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212201043 + 212201044.

It is an arithmetic number, because the mean of its divisors is an integer number (212201044).

Almost surely, 2^424402087 is an apocalyptic number.

424402087 is a deficient number, since it is larger than the sum of its proper divisors (1).

424402087 is an equidigital number, since it uses as much as digits as its factorization.

424402087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 424402087 is about 20601.0215037993. The cubic root of 424402087 is about 751.4945528080.

The spelling of 424402087 in words is "four hundred twenty-four million, four hundred two thousand, eighty-seven".