28006741 has 12 divisors (see below), whose sum is σ = 33784032. Its totient is φ = 22740264.

The previous prime is 28006697. The next prime is 28006753. The reversal of 28006741 is 14760082.

It is not a de Polignac number, because 28006741 - 2⁷ = 28006613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28000741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3015 + ... + 8068.

It is an arithmetic number, because the mean of its divisors is an integer number (2815336).

Almost surely, 2^28006741 is an apocalyptic number.

It is an amenable number.

28006741 is a deficient number, since it is larger than the sum of its proper divisors (5777291).

28006741 is a wasteful number, since it uses less digits than its factorization.

28006741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11128 (or 11109 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 28006741 is about 5292.1395484246. The cubic root of 28006741 is about 303.6832638587.

The spelling of 28006741 in words is "twenty-eight million, six thousand, seven hundred forty-one".