428775463 has 2 divisors, whose sum is σ = 428775464. Its totient is φ = 428775462.

The previous prime is 428775439. The next prime is 428775481. The reversal of 428775463 is 364577824.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428775463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428775163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214387731 + 214387732.

It is an arithmetic number, because the mean of its divisors is an integer number (214387732).

Almost surely, 2^428775463 is an apocalyptic number.

428775463 is a deficient number, since it is larger than the sum of its proper divisors (1).

428775463 is an equidigital number, since it uses as much as digits as its factorization.

428775463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 46.

The square root of 428775463 is about 20706.8940935139. The cubic root of 428775463 is about 754.0670686634.

The spelling of 428775463 in words is "four hundred twenty-eight million, seven hundred seventy-five thousand, four hundred sixty-three".