28474865 has 8 divisors (see below), whose sum is σ = 34502208. Its totient is φ = 22558320.

The previous prime is 28474843. The next prime is 28474871. The reversal of 28474865 is 56847482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28474865 - 2¹⁴ = 28458481 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27131 + ... + 28160.

It is an arithmetic number, because the mean of its divisors is an integer number (4312776).

Almost surely, 2^28474865 is an apocalyptic number.

It is an amenable number.

28474865 is a deficient number, since it is larger than the sum of its proper divisors (6027343).

28474865 is a wasteful number, since it uses less digits than its factorization.

28474865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55399.

The product of its digits is 430080, while the sum is 44.

The square root of 28474865 is about 5336.1844983096. The cubic root of 28474865 is about 305.3659139618.

The spelling of 28474865 in words is "twenty-eight million, four hundred seventy-four thousand, eight hundred sixty-five".