28663341 has 16 divisors (see below), whose sum is σ = 43924608. Its totient is φ = 16286400.

The previous prime is 28663319. The next prime is 28663357. The reversal of 28663341 is 14336682.

It is not a de Polignac number, because 28663341 - 2⁷ = 28663213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28663361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31 + ... + 7571.

It is an arithmetic number, because the mean of its divisors is an integer number (2745288).

Almost surely, 2^28663341 is an apocalyptic number.

28663341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28663341 is a deficient number, since it is larger than the sum of its proper divisors (15261267).

28663341 is a wasteful number, since it uses less digits than its factorization.

28663341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7732.

The product of its digits is 20736, while the sum is 33.

The square root of 28663341 is about 5353.8155552839. The cubic root of 28663341 is about 306.0381749972.

The spelling of 28663341 in words is "twenty-eight million, six hundred sixty-three thousand, three hundred forty-one".