28514757 has 4 divisors (see below), whose sum is σ = 38019680. Its totient is φ = 19009836.

The previous prime is 28514747. The next prime is 28514767. The reversal of 28514757 is 75741582.

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 an interprime number because it is at equal distance from previous prime (28514747) and next prime (28514767).

It is not a de Polignac number, because 28514757 - 2⁴ = 28514741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28514737) 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 3 ways as a sum of consecutive naturals, for example, 4752457 + ... + 4752462.

It is an arithmetic number, because the mean of its divisors is an integer number (9504920).

Almost surely, 2^28514757 is an apocalyptic number.

It is an amenable number.

28514757 is a deficient number, since it is larger than the sum of its proper divisors (9504923).

28514757 is an equidigital number, since it uses as much as digits as its factorization.

28514757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9504922.

The product of its digits is 78400, while the sum is 39.

The square root of 28514757 is about 5339.9210668324. The cubic root of 28514757 is about 305.5084487062.

The spelling of 28514757 in words is "twenty-eight million, five hundred fourteen thousand, seven hundred fifty-seven".