28361075 has 6 divisors (see below), whose sum is σ = 35167764. Its totient is φ = 22688840.

The previous prime is 28361057. The next prime is 28361141. The reversal of 28361075 is 57016382.

It is a happy number.

It is not a de Polignac number, because 28361075 - 2²² = 24166771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 567197 + ... + 567246.

It is an arithmetic number, because the mean of its divisors is an integer number (5861294).

Almost surely, 2^28361075 is an apocalyptic number.

28361075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28361075 is a deficient number, since it is larger than the sum of its proper divisors (6806689).

28361075 is a wasteful number, since it uses less digits than its factorization.

28361075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134453 (or 1134448 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 28361075 is about 5325.5117125024. The cubic root of 28361075 is about 304.9586076588.

The spelling of 28361075 in words is "twenty-eight million, three hundred sixty-one thousand, seventy-five".