428335511 has 2 divisors, whose sum is σ = 428335512. Its totient is φ = 428335510.

The previous prime is 428335507. The next prime is 428335549. The reversal of 428335511 is 115533824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428335511 - 2² = 428335507 is a prime.

It is a super-2 number, since 2×428335511² = 366942619967262242, 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 (428331511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214167755 + 214167756.

It is an arithmetic number, because the mean of its divisors is an integer number (214167756).

Almost surely, 2^428335511 is an apocalyptic number.

428335511 is a deficient number, since it is larger than the sum of its proper divisors (1).

428335511 is an equidigital number, since it uses as much as digits as its factorization.

428335511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 32.

The square root of 428335511 is about 20696.2680452298. The cubic root of 428335511 is about 753.8090728316.

The spelling of 428335511 in words is "four hundred twenty-eight million, three hundred thirty-five thousand, five hundred eleven".