29968685 has 8 divisors (see below), whose sum is σ = 36061080. Its totient is φ = 23909184.

The previous prime is 29968669. The next prime is 29968709. The reversal of 29968685 is 58686992.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1378276 + 28590409 = 1174^2 + 5347^2 .

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 29968685 - 2⁴ = 29968669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6170 + ... + 9899.

It is an arithmetic number, because the mean of its divisors is an integer number (4507635).

Almost surely, 2^29968685 is an apocalyptic number.

It is an amenable number.

29968685 is a deficient number, since it is larger than the sum of its proper divisors (6092395).

29968685 is a wasteful number, since it uses less digits than its factorization.

29968685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16447.

The product of its digits is 1866240, while the sum is 53.

The square root of 29968685 is about 5474.3661733574. The cubic root of 29968685 is about 310.6150985269.

The spelling of 29968685 in words is "twenty-nine million, nine hundred sixty-eight thousand, six hundred eighty-five".