28646063 has 8 divisors (see below), whose sum is σ = 30085728. Its totient is φ = 27222624.

The previous prime is 28646047. The next prime is 28646069. The reversal of 28646063 is 36064682.

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

It is a cyclic number.

It is not a de Polignac number, because 28646063 - 2⁴ = 28646047 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 (28646069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356 + ... + 7577.

It is an arithmetic number, because the mean of its divisors is an integer number (3760716).

Almost surely, 2^28646063 is an apocalyptic number.

28646063 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28646063 is a deficient number, since it is larger than the sum of its proper divisors (1439665).

28646063 is a wasteful number, since it uses less digits than its factorization.

28646063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8113.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 28646063 is about 5352.2016964984. The cubic root of 28646063 is about 305.9766702991.

The spelling of 28646063 in words is "twenty-eight million, six hundred forty-six thousand, sixty-three".