428090573 has 2 divisors, whose sum is σ = 428090574. Its totient is φ = 428090572.

The previous prime is 428090561. The next prime is 428090581. The reversal of 428090573 is 375090824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376437604 + 51652969 = 19402^2 + 7187^2 .

It is a cyclic number.

It is not a de Polignac number, because 428090573 - 2²⁰ = 427041997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428090503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214045286 + 214045287.

It is an arithmetic number, because the mean of its divisors is an integer number (214045287).

Almost surely, 2^428090573 is an apocalyptic number.

It is an amenable number.

428090573 is a deficient number, since it is larger than the sum of its proper divisors (1).

428090573 is an equidigital number, since it uses as much as digits as its factorization.

428090573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 428090573 is about 20690.3497553811. The cubic root of 428090573 is about 753.6653601834.

The spelling of 428090573 in words is "four hundred twenty-eight million, ninety thousand, five hundred seventy-three".