28073174 has 4 divisors (see below), whose sum is σ = 42109764. Its totient is φ = 14036586.

The previous prime is 28073153. The next prime is 28073183. The reversal of 28073174 is 47137082.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47137082 = 2 ⋅23568541.

It is a self number, because there is not a number n which added to its sum of digits gives 28073174.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7018292 + ... + 7018295.

It is an arithmetic number, because the mean of its divisors is an integer number (10527441).

Almost surely, 2^28073174 is an apocalyptic number.

28073174 is a deficient number, since it is larger than the sum of its proper divisors (14036590).

28073174 is a wasteful number, since it uses less digits than its factorization.

28073174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14036589.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 28073174 is about 5298.4124037300. The cubic root of 28073174 is about 303.9231901398.

The spelling of 28073174 in words is "twenty-eight million, seventy-three thousand, one hundred seventy-four".