1698676225 has 9 divisors (see below), whose sum is σ = 2106614083. Its totient is φ = 1358776120.

The previous prime is 1698676223. The next prime is 1698676241. The reversal of 1698676225 is 5226768961.

The square root of 1698676225 is 41215.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 611523441 + 1087152784 = 24729^2 + 32972^2 .

It is not a de Polignac number, because 1698676225 - 2¹ = 1698676223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1698676223) 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 in 8 ways as a sum of consecutive naturals, for example, 201954 + ... + 210196.

Almost surely, 2^1698676225 is an apocalyptic number.

1698676225 is the 41215-th square number.

1698676225 is the 20608-th centered octagonal number.

It is an amenable number.

1698676225 is a deficient number, since it is larger than the sum of its proper divisors (407937858).

1698676225 is an frugal number, since it uses more digits than its factorization.

1698676225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16496 (or 8248 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The cubic root of 1698676225 is about 1193.1733265400.

The spelling of 1698676225 in words is "one billion, six hundred ninety-eight million, six hundred seventy-six thousand, two hundred twenty-five".