28361486 has 4 divisors (see below), whose sum is σ = 42542232. Its totient is φ = 14180742.

The previous prime is 28361483. The next prime is 28361537. The reversal of 28361486 is 68416382.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28361483) 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 as a sum of consecutive naturals, namely, 7090370 + ... + 7090373.

It is an arithmetic number, because the mean of its divisors is an integer number (10635558).

Almost surely, 2^28361486 is an apocalyptic number.

28361486 is a deficient number, since it is larger than the sum of its proper divisors (14180746).

28361486 is a wasteful number, since it uses less digits than its factorization.

28361486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14180745.

The product of its digits is 55296, while the sum is 38.

The square root of 28361486 is about 5325.5503002037. The cubic root of 28361486 is about 304.9600807739.

The spelling of 28361486 in words is "twenty-eight million, three hundred sixty-one thousand, four hundred eighty-six".