1688314196 has 12 divisors (see below), whose sum is σ = 2956392852. Its totient is φ = 843630528.

The previous prime is 1688314163. The next prime is 1688314211. The reversal of 1688314196 is 6914138861.

It can be written as a sum of positive squares in 2 ways, for example, as 1351591696 + 336722500 = 36764^2 + 18350^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1688314196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124385 + ... + 137288.

It is an arithmetic number, because the mean of its divisors is an integer number (246366071).

Almost surely, 2^1688314196 is an apocalyptic number.

It is an amenable number.

1688314196 is a deficient number, since it is larger than the sum of its proper divisors (1268078656).

1688314196 is a wasteful number, since it uses less digits than its factorization.

1688314196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263290 (or 263288 counting only the distinct ones).

The product of its digits is 248832, while the sum is 47.

The square root of 1688314196 is about 41089.1006959267. The cubic root of 1688314196 is about 1190.7422330915.

The spelling of 1688314196 in words is "one billion, six hundred eighty-eight million, three hundred fourteen thousand, one hundred ninety-six".