29845649 has 2 divisors, whose sum is σ = 29845650. Its totient is φ = 29845648.

The previous prime is 29845609. The next prime is 29845661. The reversal of 29845649 is 94654892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28815424 + 1030225 = 5368^2 + 1015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29845649 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (29845609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14922824 + 14922825.

It is an arithmetic number, because the mean of its divisors is an integer number (14922825).

Almost surely, 2^29845649 is an apocalyptic number.

It is an amenable number.

29845649 is a deficient number, since it is larger than the sum of its proper divisors (1).

29845649 is an equidigital number, since it uses as much as digits as its factorization.

29845649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The square root of 29845649 is about 5463.1171504920. The cubic root of 29845649 is about 310.1894402280.

The spelling of 29845649 in words is "twenty-nine million, eight hundred forty-five thousand, six hundred forty-nine".