28474753 has 4 divisors (see below), whose sum is σ = 28486080. Its totient is φ = 28463428.

The previous prime is 28474751. The next prime is 28474777. The reversal of 28474753 is 35747482.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35747482 = 2 ⋅17873741.

It is a cyclic number.

It is not a de Polignac number, because 28474753 - 2¹ = 28474751 is a prime.

It is a super-2 number, since 2×28474753² = 1621623116822018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28474751) 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, 13 + ... + 7546.

It is an arithmetic number, because the mean of its divisors is an integer number (7121520).

Almost surely, 2^28474753 is an apocalyptic number.

It is an amenable number.

28474753 is a deficient number, since it is larger than the sum of its proper divisors (11327).

28474753 is an equidigital number, since it uses as much as digits as its factorization.

28474753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11326.

The product of its digits is 188160, while the sum is 40.

The square root of 28474753 is about 5336.1740039095. The cubic root of 28474753 is about 305.3655135967.

The spelling of 28474753 in words is "twenty-eight million, four hundred seventy-four thousand, seven hundred fifty-three".