1688059396 has 9 divisors (see below), whose sum is σ = 2954247751. Its totient is φ = 843988612.

The previous prime is 1688059391. The next prime is 1688059411. The reversal of 1688059396 is 6939508861.

It is a happy number.

The square root of 1688059396 is 41086.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1688059391) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 71901 + ... + 92443.

Almost surely, 2^1688059396 is an apocalyptic number.

1688059396 is the 41086-th square number.

It is an amenable number.

1688059396 is a deficient number, since it is larger than the sum of its proper divisors (1266188355).

1688059396 is an frugal number, since it uses more digits than its factorization.

1688059396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41090 (or 20545 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 55.

The cubic root of 1688059396 is about 1190.6823278941.

The spelling of 1688059396 in words is "one billion, six hundred eighty-eight million, fifty-nine thousand, three hundred ninety-six".