698397767 has 2 divisors, whose sum is σ = 698397768. Its totient is φ = 698397766.

The previous prime is 698397761. The next prime is 698397779. The reversal of 698397767 is 767793896.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 698397767 - 2⁴ = 698397751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698397761) 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, 349198883 + 349198884.

It is an arithmetic number, because the mean of its divisors is an integer number (349198884).

Almost surely, 2^698397767 is an apocalyptic number.

698397767 is a deficient number, since it is larger than the sum of its proper divisors (1).

698397767 is an equidigital number, since it uses as much as digits as its factorization.

698397767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24004512, while the sum is 62.

The square root of 698397767 is about 26427.2164065760. The cubic root of 698397767 is about 887.2260417924.

The spelling of 698397767 in words is "six hundred ninety-eight million, three hundred ninety-seven thousand, seven hundred sixty-seven".