29138807 has 2 divisors, whose sum is σ = 29138808. Its totient is φ = 29138806.

The previous prime is 29138789. The next prime is 29138839. The reversal of 29138807 is 70883192.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29138807 - 2¹⁰ = 29137783 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29138407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14569403 + 14569404.

It is an arithmetic number, because the mean of its divisors is an integer number (14569404).

Almost surely, 2^29138807 is an apocalyptic number.

29138807 is a deficient number, since it is larger than the sum of its proper divisors (1).

29138807 is an equidigital number, since it uses as much as digits as its factorization.

29138807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 29138807 is about 5398.0373285112. The cubic root of 29138807 is about 307.7210854158.

The spelling of 29138807 in words is "twenty-nine million, one hundred thirty-eight thousand, eight hundred seven".