28074117 has 16 divisors (see below), whose sum is σ = 38859840. Its totient is φ = 18006912.

The previous prime is 28074107. The next prime is 28074131. The reversal of 28074117 is 71147082.

It is not a de Polignac number, because 28074117 - 2¹¹ = 28072069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28074107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45193 + ... + 45809.

It is an arithmetic number, because the mean of its divisors is an integer number (2428740).

Almost surely, 2^28074117 is an apocalyptic number.

It is an amenable number.

28074117 is a deficient number, since it is larger than the sum of its proper divisors (10785723).

28074117 is a wasteful number, since it uses less digits than its factorization.

28074117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 28074117 is about 5298.5013919032. The cubic root of 28074117 is about 303.9265931080.

The spelling of 28074117 in words is "twenty-eight million, seventy-four thousand, one hundred seventeen".