428062667 has 2 divisors, whose sum is σ = 428062668. Its totient is φ = 428062666.

The previous prime is 428062651. The next prime is 428062693. The reversal of 428062667 is 766260824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428062667 - 2⁴ = 428062651 is a prime.

It is not a weakly prime, because it can be changed into another prime (428062627) 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, 214031333 + 214031334.

It is an arithmetic number, because the mean of its divisors is an integer number (214031334).

Almost surely, 2^428062667 is an apocalyptic number.

428062667 is a deficient number, since it is larger than the sum of its proper divisors (1).

428062667 is an equidigital number, since it uses as much as digits as its factorization.

428062667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 428062667 is about 20689.6753720304. The cubic root of 428062667 is about 753.6489833978.

The spelling of 428062667 in words is "four hundred twenty-eight million, sixty-two thousand, six hundred sixty-seven".