928399 has 2 divisors, whose sum is σ = 928400. Its totient is φ = 928398.

The previous prime is 928351. The next prime is 928409. The reversal of 928399 is 993829.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 928399 - 2⁷ = 928271 is a prime.

928399 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (928099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464199 + 464200.

It is an arithmetic number, because the mean of its divisors is an integer number (464200).

2⁹²⁸³⁹⁹ is an apocalyptic number.

928399 is a deficient number, since it is larger than the sum of its proper divisors (1).

928399 is an equidigital number, since it uses as much as digits as its factorization.

928399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 40.

The square root of 928399 is about 963.5346387131. The cubic root of 928399 is about 97.5539565474.

The spelling of 928399 in words is "nine hundred twenty-eight thousand, three hundred ninety-nine".