428164603 has 2 divisors, whose sum is σ = 428164604. Its totient is φ = 428164602.

The previous prime is 428164579. The next prime is 428164663. The reversal of 428164603 is 306461824.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428164603 is a prime.

It is not a weakly prime, because it can be changed into another prime (428164663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214082301 + 214082302.

It is an arithmetic number, because the mean of its divisors is an integer number (214082302).

Almost surely, 2^428164603 is an apocalyptic number.

428164603 is a deficient number, since it is larger than the sum of its proper divisors (1).

428164603 is an equidigital number, since it uses as much as digits as its factorization.

428164603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 428164603 is about 20692.1386763186. The cubic root of 428164603 is about 753.7088016374.

The spelling of 428164603 in words is "four hundred twenty-eight million, one hundred sixty-four thousand, six hundred three".