29689047 has 12 divisors (see below), whose sum is σ = 42948360. Its totient is φ = 19763088.

The previous prime is 29688991. The next prime is 29689073. The reversal of 29689047 is 74098692.

It is a happy number.

It is not a de Polignac number, because 29689047 - 2¹¹ = 29686999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29688993 and 29689011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29689087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5104 + ... + 9242.

It is an arithmetic number, because the mean of its divisors is an integer number (3579030).

Almost surely, 2^29689047 is an apocalyptic number.

29689047 is a deficient number, since it is larger than the sum of its proper divisors (13259313).

29689047 is a wasteful number, since it uses less digits than its factorization.

29689047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4942 (or 4939 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 29689047 is about 5448.7656400326. The cubic root of 29689047 is about 309.6459607167.

The spelling of 29689047 in words is "twenty-nine million, six hundred eighty-nine thousand, forty-seven".