428526653 has 2 divisors, whose sum is σ = 428526654. Its totient is φ = 428526652.

The previous prime is 428526607. The next prime is 428526689. The reversal of 428526653 is 356625824.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395095129 + 33431524 = 19877^2 + 5782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428526653 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 428526653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428526053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214263326 + 214263327.

It is an arithmetic number, because the mean of its divisors is an integer number (214263327).

Almost surely, 2^428526653 is an apocalyptic number.

It is an amenable number.

428526653 is a deficient number, since it is larger than the sum of its proper divisors (1).

428526653 is an equidigital number, since it uses as much as digits as its factorization.

428526653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 41.

The square root of 428526653 is about 20700.8853192321. The cubic root of 428526653 is about 753.9211836600.

The spelling of 428526653 in words is "four hundred twenty-eight million, five hundred twenty-six thousand, six hundred fifty-three".