28075161 has 16 divisors (see below), whose sum is σ = 38885760. Its totient is φ = 17996160.

The previous prime is 28075129. The next prime is 28075169. The reversal of 28075161 is 16157082.

It is not a de Polignac number, because 28075161 - 2⁵ = 28075129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28075169) 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, 26716 + ... + 27746.

It is an arithmetic number, because the mean of its divisors is an integer number (2430360).

Almost surely, 2^28075161 is an apocalyptic number.

It is an amenable number.

28075161 is a deficient number, since it is larger than the sum of its proper divisors (10810599).

28075161 is a wasteful number, since it uses less digits than its factorization.

28075161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 28075161 is about 5298.5999094100. The cubic root of 28075161 is about 303.9303604623.

The spelling of 28075161 in words is "twenty-eight million, seventy-five thousand, one hundred sixty-one".