1688092972 has 12 divisors (see below), whose sum is σ = 3049458496. Its totient is φ = 816819120.

The previous prime is 1688092957. The next prime is 1688092997. The reversal of 1688092972 is 2792908861.

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 in 3 ways as a sum of consecutive naturals, for example, 6806703 + ... + 6806950.

Almost surely, 2^1688092972 is an apocalyptic number.

It is an amenable number.

1688092972 is a deficient number, since it is larger than the sum of its proper divisors (1361365524).

1688092972 is a wasteful number, since it uses less digits than its factorization.

1688092972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13613688 (or 13613686 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 1688092972 is about 41086.4086043061. The cubic root of 1688092972 is about 1190.6902221828.

The spelling of 1688092972 in words is "one billion, six hundred eighty-eight million, ninety-two thousand, nine hundred seventy-two".