28427874 has 8 divisors (see below), whose sum is σ = 56855760. Its totient is φ = 9475956.

The previous prime is 28427869. The next prime is 28427921. The reversal of 28427874 is 47872482.

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

28427874 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2368984 + ... + 2368995.

It is an arithmetic number, because the mean of its divisors is an integer number (7106970).

Almost surely, 2^28427874 is an apocalyptic number.

28427874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28427874 is a wasteful number, since it uses less digits than its factorization.

28427874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737984.

The product of its digits is 200704, while the sum is 42.

The square root of 28427874 is about 5331.7796278541. The cubic root of 28427874 is about 305.1978435090.

The spelling of 28427874 in words is "twenty-eight million, four hundred twenty-seven thousand, eight hundred seventy-four".