29828669 has 8 divisors (see below), whose sum is σ = 32315640. Its totient is φ = 27532128.

The previous prime is 29828663. The next prime is 29828717. The reversal of 29828669 is 96682892.

It can be written as a sum of positive squares in 4 ways, for example, as 2402500 + 27426169 = 1550^2 + 5237^2 .

It is not a de Polignac number, because 29828669 - 2⁴ = 29828653 is a prime.

It is a super-2 number, since 2×29828669² = 1779498988623122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29828663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4592 + ... + 8985.

It is an arithmetic number, because the mean of its divisors is an integer number (4039455).

Almost surely, 2^29828669 is an apocalyptic number.

It is an amenable number.

29828669 is a deficient number, since it is larger than the sum of its proper divisors (2486971).

29828669 is an equidigital number, since it uses as much as digits as its factorization.

29828669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13616 (or 13590 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 29828669 is about 5461.5628715598. The cubic root of 29828669 is about 310.1306040041.

The spelling of 29828669 in words is "twenty-nine million, eight hundred twenty-eight thousand, six hundred sixty-nine".