428198567 has 16 divisors (see below), whose sum is σ = 488374272. Its totient is φ = 373042560.

The previous prime is 428198557. The next prime is 428198587. The reversal of 428198567 is 765891824.

It is not a de Polignac number, because 428198567 - 2¹⁰ = 428197543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428198557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5543 + ... + 29784.

It is an arithmetic number, because the mean of its divisors is an integer number (30523392).

Almost surely, 2^428198567 is an apocalyptic number.

428198567 is a deficient number, since it is larger than the sum of its proper divisors (60175705).

428198567 is a wasteful number, since it uses less digits than its factorization.

428198567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35398.

The product of its digits is 967680, while the sum is 50.

The square root of 428198567 is about 20692.9593581972. The cubic root of 428198567 is about 753.7287303351.

The spelling of 428198567 in words is "four hundred twenty-eight million, one hundred ninety-eight thousand, five hundred sixty-seven".