29001649 has 2 divisors, whose sum is σ = 29001650. Its totient is φ = 29001648.

The previous prime is 29001613. The next prime is 29001671. The reversal of 29001649 is 94610092.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27720225 + 1281424 = 5265^2 + 1132^2 .

It is a cyclic number.

It is not a de Polignac number, because 29001649 - 2¹⁵ = 28968881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29001649.

It is not a weakly prime, because it can be changed into another prime (29001149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14500824 + 14500825.

It is an arithmetic number, because the mean of its divisors is an integer number (14500825).

Almost surely, 2^29001649 is an apocalyptic number.

It is an amenable number.

29001649 is a deficient number, since it is larger than the sum of its proper divisors (1).

29001649 is an equidigital number, since it uses as much as digits as its factorization.

29001649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 29001649 is about 5385.3179107644. The cubic root of 29001649 is about 307.2375057346.

The spelling of 29001649 in words is "twenty-nine million, one thousand, six hundred forty-nine".