29806137 has 24 divisors (see below), whose sum is σ = 46597824. Its totient is φ = 19003248.

The previous prime is 29806129. The next prime is 29806141. The reversal of 29806137 is 73160892.

It is not a de Polignac number, because 29806137 - 2³ = 29806129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29806837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2923 + ... + 8255.

It is an arithmetic number, because the mean of its divisors is an integer number (1941576).

Almost surely, 2^29806137 is an apocalyptic number.

29806137 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

29806137 is a deficient number, since it is larger than the sum of its proper divisors (16791687).

29806137 is an equidigital number, since it uses as much as digits as its factorization.

29806137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5371 (or 5359 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 29806137 is about 5459.4997023537. The cubic root of 29806137 is about 310.0524954457.

The spelling of 29806137 in words is "twenty-nine million, eight hundred six thousand, one hundred thirty-seven".