29691906 has 16 divisors (see below), whose sum is σ = 59439744. Its totient is φ = 9887984.

The previous prime is 29691901. The next prime is 29691931. The reversal of 29691906 is 60919692.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (29691901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8311 + ... + 11333.

It is an arithmetic number, because the mean of its divisors is an integer number (3714984).

Almost surely, 2^29691906 is an apocalyptic number.

29691906 is an abundant number, since it is smaller than the sum of its proper divisors (29747838).

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

29691906 is a wasteful number, since it uses less digits than its factorization.

29691906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 29691906 is about 5449.0279867147. The cubic root of 29691906 is about 309.6558998410.

The spelling of 29691906 in words is "twenty-nine million, six hundred ninety-one thousand, nine hundred six".