28106072 has 16 divisors (see below), whose sum is σ = 52842240. Its totient is φ = 14014816.

The previous prime is 28106027. The next prime is 28106077. The reversal of 28106072 is 27060182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28106077) 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, 1523 + ... + 7650.

It is an arithmetic number, because the mean of its divisors is an integer number (3302640).

Almost surely, 2^28106072 is an apocalyptic number.

It is an amenable number.

28106072 is a deficient number, since it is larger than the sum of its proper divisors (24736168).

28106072 is a wasteful number, since it uses less digits than its factorization.

28106072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562 (or 9558 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 28106072 is about 5301.5160095957. The cubic root of 28106072 is about 304.0418628868.

The spelling of 28106072 in words is "twenty-eight million, one hundred six thousand, seventy-two".