428175403 has 2 divisors, whose sum is σ = 428175404. Its totient is φ = 428175402.

The previous prime is 428175389. The next prime is 428175421. The reversal of 428175403 is 304571824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428175403 - 2²⁵ = 394620971 is a prime.

It is a super-3 number, since 3×428175403³ (a number of 27 digits) contains 333 as substring.

It is equal to p_22756219 and since 428175403 and 22756219 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (428175443) 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 as a sum of consecutive naturals, namely, 214087701 + 214087702.

It is an arithmetic number, because the mean of its divisors is an integer number (214087702).

Almost surely, 2^428175403 is an apocalyptic number.

428175403 is a deficient number, since it is larger than the sum of its proper divisors (1).

428175403 is an equidigital number, since it uses as much as digits as its factorization.

428175403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 428175403 is about 20692.3996433473. The cubic root of 428175403 is about 753.7151387537.

The spelling of 428175403 in words is "four hundred twenty-eight million, one hundred seventy-five thousand, four hundred three".