28617695 has 4 divisors (see below), whose sum is σ = 34341240. Its totient is φ = 22894152.

The previous prime is 28617649. The next prime is 28617697. The reversal of 28617695 is 59671682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28617695 - 2¹⁶ = 28552159 is a prime.

It is a super-2 number, since 2×28617695² = 1637944934226050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28617697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2861765 + ... + 2861774.

It is an arithmetic number, because the mean of its divisors is an integer number (8585310).

Almost surely, 2^28617695 is an apocalyptic number.

28617695 is a deficient number, since it is larger than the sum of its proper divisors (5723545).

28617695 is an equidigital number, since it uses as much as digits as its factorization.

28617695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723544.

The product of its digits is 181440, while the sum is 44.

The square root of 28617695 is about 5349.5509157312. The cubic root of 28617695 is about 305.8756347398.

The spelling of 28617695 in words is "twenty-eight million, six hundred seventeen thousand, six hundred ninety-five".