28361386 has 8 divisors (see below), whose sum is σ = 42877440. Its totient is φ = 14068908.

The previous prime is 28361371. The next prime is 28361387. The reversal of 28361386 is 68316382.

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

It is not an unprimeable number, because it can be changed into a prime (28361387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55576 + ... + 56083.

It is an arithmetic number, because the mean of its divisors is an integer number (5359680).

Almost surely, 2^28361386 is an apocalyptic number.

28361386 is a deficient number, since it is larger than the sum of its proper divisors (14516054).

28361386 is a wasteful number, since it uses less digits than its factorization.

28361386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111788.

The product of its digits is 41472, while the sum is 37.

The square root of 28361386 is about 5325.5409114943. The cubic root of 28361386 is about 304.9597223530.

The spelling of 28361386 in words is "twenty-eight million, three hundred sixty-one thousand, three hundred eighty-six".