28314769 has 16 divisors (see below), whose sum is σ = 34862080. Its totient is φ = 22453200.

The previous prime is 28314743. The next prime is 28314779. The reversal of 28314769 is 96741382.

It is not a de Polignac number, because 28314769 - 2¹¹ = 28312721 is a prime.

It is a super-2 number, since 2×28314769² = 1603452287046722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28314709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3244 + ... + 8194.

It is an arithmetic number, because the mean of its divisors is an integer number (2178880).

Almost surely, 2^28314769 is an apocalyptic number.

It is an amenable number.

28314769 is a deficient number, since it is larger than the sum of its proper divisors (6547311).

28314769 is a wasteful number, since it uses less digits than its factorization.

28314769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020.

The product of its digits is 72576, while the sum is 40.

The square root of 28314769 is about 5321.1623730159. The cubic root of 28314769 is about 304.7925454796.

The spelling of 28314769 in words is "twenty-eight million, three hundred fourteen thousand, seven hundred sixty-nine".