698087701 has 2 divisors, whose sum is σ = 698087702. Its totient is φ = 698087700.

The previous prime is 698087699. The next prime is 698087707. The reversal of 698087701 is 107780896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 683874801 + 14212900 = 26151^2 + 3770^2 .

It is a cyclic number.

It is not a de Polignac number, because 698087701 - 2¹ = 698087699 is a prime.

Together with 698087699, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698087707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349043850 + 349043851.

It is an arithmetic number, because the mean of its divisors is an integer number (349043851).

Almost surely, 2^698087701 is an apocalyptic number.

It is an amenable number.

698087701 is a deficient number, since it is larger than the sum of its proper divisors (1).

698087701 is an equidigital number, since it uses as much as digits as its factorization.

698087701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 698087701 is about 26421.3493410159. The cubic root of 698087701 is about 887.0947224762.

The spelling of 698087701 in words is "six hundred ninety-eight million, eighty-seven thousand, seven hundred one".