28829649 has 8 divisors (see below), whose sum is σ = 40110912. Its totient is φ = 18384080.

The previous prime is 28829641. The next prime is 28829653. The reversal of 28829649 is 94692882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28829649 - 2³ = 28829641 is a prime.

It is a super-2 number, since 2×28829649² = 1662297322926402, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28829598 and 28829607.

It is not an unprimeable number, because it can be changed into a prime (28829641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208842 + ... + 208979.

It is an arithmetic number, because the mean of its divisors is an integer number (5013864).

Almost surely, 2^28829649 is an apocalyptic number.

It is an amenable number.

28829649 is a deficient number, since it is larger than the sum of its proper divisors (11281263).

28829649 is a wasteful number, since it uses less digits than its factorization.

28829649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417847.

The product of its digits is 497664, while the sum is 48.

The square root of 28829649 is about 5369.3248178891. The cubic root of 28829649 is about 306.6289234950.

The spelling of 28829649 in words is "twenty-eight million, eight hundred twenty-nine thousand, six hundred forty-nine".