29919207 has 8 divisors (see below), whose sum is σ = 39988720. Its totient is φ = 19897920.

The previous prime is 29919193. The next prime is 29919229. The reversal of 29919207 is 70291992.

It is a happy number.

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

It is not a de Polignac number, because 29919207 - 2⁴ = 29919191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29919257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10582 + ... + 13107.

It is an arithmetic number, because the mean of its divisors is an integer number (4998590).

Almost surely, 2^29919207 is an apocalyptic number.

29919207 is a deficient number, since it is larger than the sum of its proper divisors (10069513).

29919207 is a wasteful number, since it uses less digits than its factorization.

29919207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24113.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 29919207 is about 5469.8452446116. The cubic root of 29919207 is about 310.4440635569. Note that the first 3 decimals are identical.

The spelling of 29919207 in words is "twenty-nine million, nine hundred nineteen thousand, two hundred seven".