428933269 has 2 divisors, whose sum is σ = 428933270. Its totient is φ = 428933268.

The previous prime is 428933261. The next prime is 428933317. The reversal of 428933269 is 962339824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264452644 + 164480625 = 16262^2 + 12825^2 .

It is a cyclic number.

It is not a de Polignac number, because 428933269 - 2³ = 428933261 is a prime.

It is a super-2 number, since 2×428933269² = 367967498510052722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428933261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214466634 + 214466635.

It is an arithmetic number, because the mean of its divisors is an integer number (214466635).

Almost surely, 2^428933269 is an apocalyptic number.

It is an amenable number.

428933269 is a deficient number, since it is larger than the sum of its proper divisors (1).

428933269 is an equidigital number, since it uses as much as digits as its factorization.

428933269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 46.

The square root of 428933269 is about 20710.7042130392. The cubic root of 428933269 is about 754.1595659591.

The spelling of 428933269 in words is "four hundred twenty-eight million, nine hundred thirty-three thousand, two hundred sixty-nine".