29136691 has 12 divisors (see below), whose sum is σ = 31719240. Its totient is φ = 26743040.

The previous prime is 29136673. The next prime is 29136707. The reversal of 29136691 is 19663192.

It is not a de Polignac number, because 29136691 - 2⁹ = 29136179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29136691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29136661) 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, 10620 + ... + 13078.

It is an arithmetic number, because the mean of its divisors is an integer number (2643270).

Almost surely, 2^29136691 is an apocalyptic number.

29136691 is a deficient number, since it is larger than the sum of its proper divisors (2582549).

29136691 is a wasteful number, since it uses less digits than its factorization.

29136691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534 (or 2517 counting only the distinct ones).

The product of its digits is 17496, while the sum is 37.

The square root of 29136691 is about 5397.8413277902. The cubic root of 29136691 is about 307.7136365455.

It can be divided in two parts, 2913 and 6691, that added together give a square (9604 = 98²).

The spelling of 29136691 in words is "twenty-nine million, one hundred thirty-six thousand, six hundred ninety-one".