28474801 has 4 divisors (see below), whose sum is σ = 28508004. Its totient is φ = 28441600.

The previous prime is 28474777. The next prime is 28474807. The reversal of 28474801 is 10847482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10847482 = 2 ⋅5423741.

It can be written as a sum of positive squares in 2 ways, for example, as 7535025 + 20939776 = 2745^2 + 4576^2 .

It is a cyclic number.

It is not a de Polignac number, because 28474801 - 2¹⁷ = 28343729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28474807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15280 + ... + 17041.

It is an arithmetic number, because the mean of its divisors is an integer number (7127001).

Almost surely, 2^28474801 is an apocalyptic number.

It is an amenable number.

28474801 is a deficient number, since it is larger than the sum of its proper divisors (33203).

28474801 is an equidigital number, since it uses as much as digits as its factorization.

28474801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33202.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 28474801 is about 5336.1785015121. The cubic root of 28474801 is about 305.3656851819.

The spelling of 28474801 in words is "twenty-eight million, four hundred seventy-four thousand, eight hundred one".