28058337 has 6 divisors (see below), whose sum is σ = 40528722. Its totient is φ = 18705552.

The previous prime is 28058311. The next prime is 28058357. The reversal of 28058337 is 73385082.

It can be written as a sum of positive squares in only one way, i.e., 17715681 + 10342656 = 4209^2 + 3216^2 .

It is not a de Polignac number, because 28058337 - 2⁸ = 28058081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28058357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1558788 + ... + 1558805.

It is an arithmetic number, because the mean of its divisors is an integer number (6754787).

Almost surely, 2^28058337 is an apocalyptic number.

It is an amenable number.

28058337 is a deficient number, since it is larger than the sum of its proper divisors (12470385).

28058337 is a wasteful number, since it uses less digits than its factorization.

28058337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117599 (or 3117596 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 28058337 is about 5297.0120822970. The cubic root of 28058337 is about 303.8696383871.

The spelling of 28058337 in words is "twenty-eight million, fifty-eight thousand, three hundred thirty-seven".