28469061 has 12 divisors (see below), whose sum is σ = 41333292. Its totient is φ = 18881856.

The previous prime is 28469057. The next prime is 28469069. The reversal of 28469061 is 16096482.

It can be written as a sum of positive squares in 2 ways, for example, as 22268961 + 6200100 = 4719^2 + 2490^2 .

It is not a de Polignac number, because 28469061 - 2² = 28469057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28469069) by changing a digit.

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, 6256 + ... + 9801.

It is an arithmetic number, because the mean of its divisors is an integer number (3444441).

Almost surely, 2^28469061 is an apocalyptic number.

It is an amenable number.

28469061 is a deficient number, since it is larger than the sum of its proper divisors (12864231).

28469061 is a wasteful number, since it uses less digits than its factorization.

28469061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16260 (or 16257 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 28469061 is about 5335.6406363248. The cubic root of 28469061 is about 305.3451650873.

The spelling of 28469061 in words is "twenty-eight million, four hundred sixty-nine thousand, sixty-one".