428303447 has 16 divisors (see below), whose sum is σ = 525063168. Its totient is φ = 343786080.

The previous prime is 428303431. The next prime is 428303459. The reversal of 428303447 is 744303824.

It is not a de Polignac number, because 428303447 - 2⁴ = 428303431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428303417) 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, 61823 + ... + 68400.

It is an arithmetic number, because the mean of its divisors is an integer number (32816448).

Almost surely, 2^428303447 is an apocalyptic number.

428303447 is a deficient number, since it is larger than the sum of its proper divisors (96759721).

428303447 is a wasteful number, since it uses less digits than its factorization.

428303447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130270.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 428303447 is about 20695.4933983223. The cubic root of 428303447 is about 753.7902630150.

The spelling of 428303447 in words is "four hundred twenty-eight million, three hundred three thousand, four hundred forty-seven".