28927501 has 2 divisors, whose sum is σ = 28927502. Its totient is φ = 28927500.

The previous prime is 28927487. The next prime is 28927543. The reversal of 28927501 is 10572982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28836900 + 90601 = 5370^2 + 301^2 .

It is a cyclic number.

It is not a de Polignac number, because 28927501 - 2⁷ = 28927373 is a prime.

It is equal to p_1795480 and since 28927501 and 1795480 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28927901) 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 as a sum of consecutive naturals, namely, 14463750 + 14463751.

It is an arithmetic number, because the mean of its divisors is an integer number (14463751).

Almost surely, 2^28927501 is an apocalyptic number.

It is an amenable number.

28927501 is a deficient number, since it is larger than the sum of its proper divisors (1).

28927501 is an equidigital number, since it uses as much as digits as its factorization.

28927501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 28927501 is about 5378.4292316623. The cubic root of 28927501 is about 306.9754460516.

The spelling of 28927501 in words is "twenty-eight million, nine hundred twenty-seven thousand, five hundred one".