28010161 has 8 divisors (see below), whose sum is σ = 29859200. Its totient is φ = 26198640.

The previous prime is 28010149. The next prime is 28010183. The reversal of 28010161 is 16101082.

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

It is a cyclic number.

It is not a de Polignac number, because 28010161 - 2¹⁹ = 27485873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28010131) 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, 7830 + ... + 10831.

It is an arithmetic number, because the mean of its divisors is an integer number (3732400).

Almost surely, 2^28010161 is an apocalyptic number.

It is an amenable number.

28010161 is a deficient number, since it is larger than the sum of its proper divisors (1849039).

28010161 is a wasteful number, since it uses less digits than its factorization.

28010161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18759.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 28010161 is about 5292.4626592920. The cubic root of 28010161 is about 303.6956246268.

The spelling of 28010161 in words is "twenty-eight million, ten thousand, one hundred sixty-one".