29680109 has 4 divisors (see below), whose sum is σ = 31242240. Its totient is φ = 28117980.

The previous prime is 29680103. The next prime is 29680111. The reversal of 29680109 is 90108692.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29680109 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 (29680103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781037 + ... + 781074.

It is an arithmetic number, because the mean of its divisors is an integer number (7810560).

Almost surely, 2^29680109 is an apocalyptic number.

It is an amenable number.

29680109 is a deficient number, since it is larger than the sum of its proper divisors (1562131).

29680109 is a wasteful number, since it uses less digits than its factorization.

29680109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562130.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 29680109 is about 5447.9453925310. The cubic root of 29680109 is about 309.6148842350.

The spelling of 29680109 in words is "twenty-nine million, six hundred eighty thousand, one hundred nine".