29800825 has 12 divisors (see below), whose sum is σ = 37337020. Its totient is φ = 23592960.

The previous prime is 29800817. The next prime is 29800831. The reversal of 29800825 is 52800892.

It can be written as a sum of positive squares in 6 ways, for example, as 144 + 29800681 = 12^2 + 5459^2 .

It is not a de Polignac number, because 29800825 - 2³ = 29800817 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3720 + ... + 8569.

Almost surely, 2^29800825 is an apocalyptic number.

29800825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29800825 is a deficient number, since it is larger than the sum of its proper divisors (7536195).

29800825 is a wasteful number, since it uses less digits than its factorization.

29800825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12396 (or 12391 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 29800825 is about 5459.0131892129. The cubic root of 29800825 is about 310.0340753386.

It can be divided in two parts, 29800 and 825, that added together give a square (30625 = 175²).

The spelling of 29800825 in words is "twenty-nine million, eight hundred thousand, eight hundred twenty-five".