1696663 has 8 divisors (see below), whose sum is σ = 1746000. Its totient is φ = 1648128.

The previous prime is 1696657. The next prime is 1696691. The reversal of 1696663 is 3666961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1696663 - 2¹³ = 1688471 is a prime.

It is a d-powerful number, because it can be written as 1 + 6² + 9³ + 6⁵ + 6⁵ + 6⁸ + 3⁶ .

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1696693) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8695 + ... + 8887.

It is an arithmetic number, because the mean of its divisors is an integer number (218250).

2^1696663 is an apocalyptic number.

1696663 is a deficient number, since it is larger than the sum of its proper divisors (49337).

1696663 is a wasteful number, since it uses less digits than its factorization.

1696663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its digits is 34992, while the sum is 37.

The square root of 1696663 is about 1302.5601713549. The cubic root of 1696663 is about 119.2701767974.

The spelling of 1696663 in words is "one million, six hundred ninety-six thousand, six hundred sixty-three".