698507 has 2 divisors, whose sum is σ = 698508. Its totient is φ = 698506.

The previous prime is 698491. The next prime is 698521. The reversal of 698507 is 705896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 698507 - 2⁴ = 698491 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 698507.

It is not a weakly prime, because it can be changed into another prime (698527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349253 + 349254.

It is an arithmetic number, because the mean of its divisors is an integer number (349254).

2⁶⁹⁸⁵⁰⁷ is an apocalyptic number.

698507 is a deficient number, since it is larger than the sum of its proper divisors (1).

698507 is an equidigital number, since it uses as much as digits as its factorization.

698507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 698507 is about 835.7673121150. The cubic root of 698507 is about 88.7272294952.

The spelling of 698507 in words is "six hundred ninety-eight thousand, five hundred seven".