1697665006 has 16 divisors (see below), whose sum is σ = 2729034144. Its totient is φ = 789981984.

The previous prime is 1697665001. The next prime is 1697665009. The reversal of 1697665006 is 6005667961.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1697665001) by changing a digit.

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, 497025 + ... + 500428.

It is an arithmetic number, because the mean of its divisors is an integer number (170564634).

Almost surely, 2^1697665006 is an apocalyptic number.

1697665006 is a deficient number, since it is larger than the sum of its proper divisors (1031369138).

1697665006 is a wasteful number, since it uses less digits than its factorization.

1697665006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997515.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 1697665006 is about 41202.7305648546. The cubic root of 1697665006 is about 1192.9365148744.

The spelling of 1697665006 in words is "one billion, six hundred ninety-seven million, six hundred sixty-five thousand, six".