428564283 has 16 divisors (see below), whose sum is σ = 666946560. Its totient is φ = 239682816.

The previous prime is 428564263. The next prime is 428564293. The reversal of 428564283 is 382465824.

It is not a de Polignac number, because 428564283 - 2⁶ = 428564219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428564263) 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, 216118 + ... + 218091.

It is an arithmetic number, because the mean of its divisors is an integer number (41684160).

Almost surely, 2^428564283 is an apocalyptic number.

428564283 is a deficient number, since it is larger than the sum of its proper divisors (238382277).

428564283 is a wasteful number, since it uses less digits than its factorization.

428564283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434266.

The product of its digits is 368640, while the sum is 42.

The square root of 428564283 is about 20701.7941976052. The cubic root of 428564283 is about 753.9432509173.

The spelling of 428564283 in words is "four hundred twenty-eight million, five hundred sixty-four thousand, two hundred eighty-three".