28362071 has 4 divisors (see below), whose sum is σ = 28379544. Its totient is φ = 28344600.

The previous prime is 28362043. The next prime is 28362073. The reversal of 28362071 is 17026382.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28362071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28362073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6020 + ... + 9641.

It is an arithmetic number, because the mean of its divisors is an integer number (7094886).

Almost surely, 2^28362071 is an apocalyptic number.

28362071 is a deficient number, since it is larger than the sum of its proper divisors (17473).

28362071 is a wasteful number, since it uses less digits than its factorization.

28362071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17472.

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

The square root of 28362071 is about 5325.6052238220. The cubic root of 28362071 is about 304.9621775190.

The spelling of 28362071 in words is "twenty-eight million, three hundred sixty-two thousand, seventy-one".