28066141 has 8 divisors (see below), whose sum is σ = 29361024. Its totient is φ = 26777520.

The previous prime is 28066127. The next prime is 28066147. The reversal of 28066141 is 14166082.

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

It is not a de Polignac number, because 28066141 - 2⁵ = 28066109 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 (28066147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9280 + ... + 11926.

It is an arithmetic number, because the mean of its divisors is an integer number (3670128).

Almost surely, 2^28066141 is an apocalyptic number.

It is an amenable number.

28066141 is a deficient number, since it is larger than the sum of its proper divisors (1294883).

28066141 is a wasteful number, since it uses less digits than its factorization.

28066141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 28066141 is about 5297.7486727855. The cubic root of 28066141 is about 303.8978080162.

The spelling of 28066141 in words is "twenty-eight million, sixty-six thousand, one hundred forty-one".