428965127 has 2 divisors, whose sum is σ = 428965128. Its totient is φ = 428965126.

The previous prime is 428965057. The next prime is 428965139. The reversal of 428965127 is 721569824.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428965127 - 2¹⁰ = 428964103 is a prime.

It is a super-2 number, since 2×428965127² = 368022160364252258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428965177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214482563 + 214482564.

It is an arithmetic number, because the mean of its divisors is an integer number (214482564).

Almost surely, 2^428965127 is an apocalyptic number.

428965127 is a deficient number, since it is larger than the sum of its proper divisors (1).

428965127 is an equidigital number, since it uses as much as digits as its factorization.

428965127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 428965127 is about 20711.4733179463. The cubic root of 428965127 is about 754.1782366339.

The spelling of 428965127 in words is "four hundred twenty-eight million, nine hundred sixty-five thousand, one hundred twenty-seven".