28056165 has 8 divisors (see below), whose sum is σ = 44889888. Its totient is φ = 14963280.

The previous prime is 28056143. The next prime is 28056187. The reversal of 28056165 is 56165082.

It is an interprime number because it is at equal distance from previous prime (28056143) and next prime (28056187).

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

It is not a de Polignac number, because 28056165 - 2¹³ = 28047973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935191 + ... + 935220.

It is an arithmetic number, because the mean of its divisors is an integer number (5611236).

Almost surely, 2^28056165 is an apocalyptic number.

It is an amenable number.

28056165 is a deficient number, since it is larger than the sum of its proper divisors (16833723).

28056165 is a wasteful number, since it uses less digits than its factorization.

28056165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870419.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 28056165 is about 5296.8070570864. The cubic root of 28056165 is about 303.8617973203.

The spelling of 28056165 in words is "twenty-eight million, fifty-six thousand, one hundred sixty-five".