928426397 has 2 divisors, whose sum is σ = 928426398. Its totient is φ = 928426396.

The previous prime is 928426379. The next prime is 928426439. The reversal of 928426397 is 793624829.

Together with previous prime (928426379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 548215396 + 380211001 = 23414^2 + 19499^2 .

It is a cyclic number.

It is not a de Polignac number, because 928426397 - 2⁶ = 928426333 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 (928420397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464213198 + 464213199.

It is an arithmetic number, because the mean of its divisors is an integer number (464213199).

Almost surely, 2^928426397 is an apocalyptic number.

It is an amenable number.

928426397 is a deficient number, since it is larger than the sum of its proper divisors (1).

928426397 is an equidigital number, since it uses as much as digits as its factorization.

928426397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 50.

The square root of 928426397 is about 30470.0902033453. The cubic root of 928426397 is about 975.5491614177.

The spelling of 928426397 in words is "nine hundred twenty-eight million, four hundred twenty-six thousand, three hundred ninety-seven".