698666896 has 20 divisors (see below), whose sum is σ = 1386684684. Its totient is φ = 340812800.

The previous prime is 698666887. The next prime is 698666897.

698666896 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 103306896 + 595360000 = 10164^2 + 24400^2 .

It is not an unprimeable number, because it can be changed into a prime (698666897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531865 + ... + 533176.

Almost surely, 2^698666896 is an apocalyptic number.

It is an amenable number.

698666896 is a deficient number, since it is larger than the sum of its proper divisors (688017788).

698666896 is a wasteful number, since it uses less digits than its factorization.

698666896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065090 (or 1065084 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 64.

The square root of 698666896 is about 26432.3078069245. The cubic root of 698666896 is about 887.3399919433.

The spelling of 698666896 in words is "six hundred ninety-eight million, six hundred sixty-six thousand, eight hundred ninety-six".