29708225 has 12 divisors (see below), whose sum is σ = 37835004. Its totient is φ = 23123520.

The previous prime is 29708219. The next prime is 29708233. The reversal of 29708225 is 52280792.

29708225 = 592² + 593² + ... + 666².

It can be written as a sum of positive squares in 6 ways, for example, as 1787569 + 27920656 = 1337^2 + 5284^2 .

It is not a de Polignac number, because 29708225 - 2¹⁴ = 29691841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15134 + ... + 16983.

It is an arithmetic number, because the mean of its divisors is an integer number (3152917).

Almost surely, 2^29708225 is an apocalyptic number.

29708225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29708225 is a deficient number, since it is larger than the sum of its proper divisors (8126779).

29708225 is a wasteful number, since it uses less digits than its factorization.

29708225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32164 (or 32159 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 29708225 is about 5450.5252040514. The cubic root of 29708225 is about 309.7126195537.

The spelling of 29708225 in words is "twenty-nine million, seven hundred eight thousand, two hundred twenty-five".