428475499 has 2 divisors, whose sum is σ = 428475500. Its totient is φ = 428475498.

The previous prime is 428475473. The next prime is 428475581. The reversal of 428475499 is 994574824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428475499 - 2⁷ = 428475371 is a prime.

It is not a weakly prime, because it can be changed into another prime (428475409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214237749 + 214237750.

It is an arithmetic number, because the mean of its divisors is an integer number (214237750).

Almost surely, 2^428475499 is an apocalyptic number.

428475499 is a deficient number, since it is larger than the sum of its proper divisors (1).

428475499 is an equidigital number, since it uses as much as digits as its factorization.

428475499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 52.

The square root of 428475499 is about 20699.6497313360. The cubic root of 428475499 is about 753.8911834888.

The spelling of 428475499 in words is "four hundred twenty-eight million, four hundred seventy-five thousand, four hundred ninety-nine".