28896169 has 4 divisors (see below), whose sum is σ = 30417040. Its totient is φ = 27375300.

The previous prime is 28896167. The next prime is 28896173. The reversal of 28896169 is 96169882.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28896169 - 2¹ = 28896167 is a prime.

It is a super-2 number, since 2×28896169² = 1669977165753122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28896167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760407 + ... + 760444.

It is an arithmetic number, because the mean of its divisors is an integer number (7604260).

Almost surely, 2^28896169 is an apocalyptic number.

It is an amenable number.

28896169 is a deficient number, since it is larger than the sum of its proper divisors (1520871).

28896169 is a wasteful number, since it uses less digits than its factorization.

28896169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520870.

The product of its digits is 373248, while the sum is 49.

The square root of 28896169 is about 5375.5156961914. The cubic root of 28896169 is about 306.8645754385.

The spelling of 28896169 in words is "twenty-eight million, eight hundred ninety-six thousand, one hundred sixty-nine".