29944991 has 2 divisors, whose sum is σ = 29944992. Its totient is φ = 29944990.

The previous prime is 29944987. The next prime is 29944997. The reversal of 29944991 is 19944992.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29944991 - 2² = 29944987 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 (29944997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14972495 + 14972496.

It is an arithmetic number, because the mean of its divisors is an integer number (14972496).

Almost surely, 2^29944991 is an apocalyptic number.

29944991 is a deficient number, since it is larger than the sum of its proper divisors (1).

29944991 is an equidigital number, since it uses as much as digits as its factorization.

29944991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 47.

The square root of 29944991 is about 5472.2016592958. The cubic root of 29944991 is about 310.5332168941.

Subtracting from 29944991 its reverse (19944992), we obtain a palindrome (9999999).

The spelling of 29944991 in words is "twenty-nine million, nine hundred forty-four thousand, nine hundred ninety-one".