1688000694 has 16 divisors (see below), whose sum is σ = 3377141040. Its totient is φ = 562476960.

The previous prime is 1688000689. The next prime is 1688000711. The reversal of 1688000694 is 4960008861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27589 + ... + 64320.

It is an arithmetic number, because the mean of its divisors is an integer number (211071315).

Almost surely, 2^1688000694 is an apocalyptic number.

1688000694 is an abundant number, since it is smaller than the sum of its proper divisors (1689140346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1688000694 is a wasteful number, since it uses less digits than its factorization.

1688000694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94975.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 1688000694 is about 41085.2856141953. The cubic root of 1688000694 is about 1190.6685258039.

The spelling of 1688000694 in words is "one billion, six hundred eighty-eight million, six hundred ninety-four", and thus it is an aban number.