29172049 has 6 divisors (see below), whose sum is σ = 30788610. Its totient is φ = 27636336.

The previous prime is 29172047. The next prime is 29172097. The reversal of 29172049 is 94027192.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27300625 + 1871424 = 5225^2 + 1368^2 .

It is not a de Polignac number, because 29172049 - 2¹ = 29172047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29172043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40044 + ... + 40765.

It is an arithmetic number, because the mean of its divisors is an integer number (5131435).

Almost surely, 2^29172049 is an apocalyptic number.

It is an amenable number.

29172049 is a deficient number, since it is larger than the sum of its proper divisors (1616561).

29172049 is an equidigital number, since it uses as much as digits as its factorization.

29172049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80847 (or 80828 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 29172049 is about 5401.1155329247. The cubic root of 29172049 is about 307.8380585973.

The spelling of 29172049 in words is "twenty-nine million, one hundred seventy-two thousand, forty-nine".