428085067 has 8 divisors (see below), whose sum is σ = 456790160. Its totient is φ = 399997440.

The previous prime is 428085023. The next prime is 428085083. The reversal of 428085067 is 760580824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428085067 - 2²⁷ = 293867339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428185067) 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 in 7 ways as a sum of consecutive naturals, for example, 152934 + ... + 155707.

It is an arithmetic number, because the mean of its divisors is an integer number (57098770).

Almost surely, 2^428085067 is an apocalyptic number.

428085067 is a deficient number, since it is larger than the sum of its proper divisors (28705093).

428085067 is a wasteful number, since it uses less digits than its factorization.

428085067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308733.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 428085067 is about 20690.2166977536. The cubic root of 428085067 is about 753.6621290142.

The spelling of 428085067 in words is "four hundred twenty-eight million, eighty-five thousand, sixty-seven".