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1696 = 2553

1696 has 12 divisors (see below), whose sum is σ = 3402. Its totient is φ = 832.

The previous prime is 1693. The next prime is 1697. The reversal of 1696 is 6961.

It can be written as a sum of positive squares in only one way, i.e., 1296 + 400 = 36^2 + 20^2 .

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (1693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6 + ... + 58.

1696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701).

1696 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1696 is an equidigital number, since it uses as much as digits as its factorization.

1696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 55 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

The square root of 1696 is about 41.1825205639. The cubic root of 1696 is about 11.9254639155.

The spelling of 1696 in words is "one thousand, six hundred ninety-six".

Divisors: 1 2 4 8 16 32 53 106 212 424 848 1696