698387697 has 16 divisors (see below), whose sum is σ = 1182455680. Its totient is φ = 399078576.

The previous prime is 698387633. The next prime is 698387713. The reversal of 698387697 is 796783896.

It is a happy number.

It is not a de Polignac number, because 698387697 - 2⁶ = 698387633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (698387497) 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 in 15 ways as a sum of consecutive naturals, for example, 1847398 + ... + 1847775.

It is an arithmetic number, because the mean of its divisors is an integer number (73903480).

Almost surely, 2^698387697 is an apocalyptic number.

It is an amenable number.

698387697 is a deficient number, since it is larger than the sum of its proper divisors (484067983).

698387697 is a wasteful number, since it uses less digits than its factorization.

698387697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3695189 (or 3695183 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The square root of 698387697 is about 26427.0258826074. The cubic root of 698387697 is about 887.2217775514.

The spelling of 698387697 in words is "six hundred ninety-eight million, three hundred eighty-seven thousand, six hundred ninety-seven".