428019703 has 2 divisors, whose sum is σ = 428019704. Its totient is φ = 428019702.

The previous prime is 428019661. The next prime is 428019743. The reversal of 428019703 is 307910824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428019703 - 2⁹ = 428019191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428019743) 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, 214009851 + 214009852.

It is an arithmetic number, because the mean of its divisors is an integer number (214009852).

Almost surely, 2^428019703 is an apocalyptic number.

428019703 is a deficient number, since it is larger than the sum of its proper divisors (1).

428019703 is an equidigital number, since it uses as much as digits as its factorization.

428019703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 428019703 is about 20688.6370503231. The cubic root of 428019703 is about 753.6237683528.

The spelling of 428019703 in words is "four hundred twenty-eight million, nineteen thousand, seven hundred three".