28061327 has 16 divisors (see below), whose sum is σ = 33454080. Its totient is φ = 23036832.

The previous prime is 28061323. The next prime is 28061333. The reversal of 28061327 is 72316082.

It is a happy number.

It is not a de Polignac number, because 28061327 - 2² = 28061323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28061327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28061321) 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, 15074 + ... + 16832.

It is an arithmetic number, because the mean of its divisors is an integer number (2090880).

Almost surely, 2^28061327 is an apocalyptic number.

28061327 is a deficient number, since it is larger than the sum of its proper divisors (5392753).

28061327 is a wasteful number, since it uses less digits than its factorization.

28061327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 28061327 is about 5297.2943093621. The cubic root of 28061327 is about 303.8804318273.

The spelling of 28061327 in words is "twenty-eight million, sixty-one thousand, three hundred twenty-seven".