29668 has 6 divisors (see below), whose sum is σ = 51926. Its totient is φ = 14832.

The previous prime is 29663. The next prime is 29669. The reversal of 29668 is 86692.

It can be written as a sum of positive squares in only one way, i.e., 28224 + 1444 = 168^2 + 38^2 .

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 (29663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3705 + ... + 3712.

2²⁹⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

29668 is a deficient number, since it is larger than the sum of its proper divisors (22258).

29668 is a wasteful number, since it uses less digits than its factorization.

29668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7421 (or 7419 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 29668 is about 172.2440129584. The cubic root of 29668 is about 30.9572772568.

The spelling of 29668 in words is "twenty-nine thousand, six hundred sixty-eight".