1097690686 has 16 divisors (see below), whose sum is σ = 1808553600. Its totient is φ = 497351448.

The previous prime is 1097690621. The next prime is 1097690723. The reversal of 1097690686 is 6860967901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627096 + ... + 628843.

It is an arithmetic number, because the mean of its divisors is an integer number (113034600).

Almost surely, 2^1097690686 is an apocalyptic number.

1097690686 is a deficient number, since it is larger than the sum of its proper divisors (710862914).

1097690686 is a wasteful number, since it uses less digits than its factorization.

1097690686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255983.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 1097690686 is about 33131.4153938524. The cubic root of 1097690686 is about 1031.5572278574.

The spelling of 1097690686 in words is "one billion, ninety-seven million, six hundred ninety thousand, six hundred eighty-six".