1690700768 has 12 divisors (see below), whose sum is σ = 3328567200. Its totient is φ = 845350368.

The previous prime is 1690700749. The next prime is 1690700821. The reversal of 1690700768 is 8670070961.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 26417168 + ... + 26417231.

It is an arithmetic number, because the mean of its divisors is an integer number (277380600).

Almost surely, 2^1690700768 is an apocalyptic number.

It is an amenable number.

1690700768 is a deficient number, since it is larger than the sum of its proper divisors (1637866432).

1690700768 is an equidigital number, since it uses as much as digits as its factorization.

1690700768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52834409 (or 52834401 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 1690700768 is about 41118.1318641788. The cubic root of 1690700768 is about 1191.3030398603.

The spelling of 1690700768 in words is "one billion, six hundred ninety million, seven hundred thousand, seven hundred sixty-eight".