698939 has 2 divisors, whose sum is σ = 698940. Its totient is φ = 698938.

The previous prime is 698923. The next prime is 698977. The reversal of 698939 is 939896.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 698939 - 2⁴ = 698923 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 698939.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 698939.

It is not a weakly prime, because it can be changed into another prime (698039) 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, 349469 + 349470.

It is an arithmetic number, because the mean of its divisors is an integer number (349470).

2⁶⁹⁸⁹³⁹ is an apocalyptic number.

698939 is a deficient number, since it is larger than the sum of its proper divisors (1).

698939 is an equidigital number, since it uses as much as digits as its factorization.

698939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 44.

The square root of 698939 is about 836.0257173078. The cubic root of 698939 is about 88.7455171974.

The spelling of 698939 in words is "six hundred ninety-eight thousand, nine hundred thirty-nine".