928645397 has 2 divisors, whose sum is σ = 928645398. Its totient is φ = 928645396.

The previous prime is 928645391. The next prime is 928645433. The reversal of 928645397 is 793546829.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 919848241 + 8797156 = 30329^2 + 2966^2 .

It is an emirp because it is prime and its reverse (793546829) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 928645397 - 2¹⁰ = 928644373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (928645391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464322698 + 464322699.

It is an arithmetic number, because the mean of its divisors is an integer number (464322699).

Almost surely, 2^928645397 is an apocalyptic number.

It is an amenable number.

928645397 is a deficient number, since it is larger than the sum of its proper divisors (1).

928645397 is an equidigital number, since it uses as much as digits as its factorization.

928645397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 53.

The square root of 928645397 is about 30473.6836795291. The cubic root of 928645397 is about 975.6258605402.

The spelling of 928645397 in words is "nine hundred twenty-eight million, six hundred forty-five thousand, three hundred ninety-seven".