428554471 has 2 divisors, whose sum is σ = 428554472. Its totient is φ = 428554470.

The previous prime is 428554417. The next prime is 428554523. The reversal of 428554471 is 174455824.

Together with previous prime (428554417) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428554471 - 2⁹ = 428553959 is a prime.

It is a super-3 number, since 3×428554471³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428554171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214277235 + 214277236.

It is an arithmetic number, because the mean of its divisors is an integer number (214277236).

Almost surely, 2^428554471 is an apocalyptic number.

428554471 is a deficient number, since it is larger than the sum of its proper divisors (1).

428554471 is an equidigital number, since it uses as much as digits as its factorization.

428554471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 179200, while the sum is 40.

The square root of 428554471 is about 20701.5572119587. The cubic root of 428554471 is about 753.9374970177.

It can be divided in two parts, 428554 and 471, that added together give a square (429025 = 655²).

The spelling of 428554471 in words is "four hundred twenty-eight million, five hundred fifty-four thousand, four hundred seventy-one".