28053463 has 4 divisors (see below), whose sum is σ = 28076328. Its totient is φ = 28030600.

The previous prime is 28053427. The next prime is 28053479. The reversal of 28053463 is 36435082.

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

It is a cyclic number.

It is not a de Polignac number, because 28053463 - 2²¹ = 25956311 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 (28053413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9481 + ... + 12082.

It is an arithmetic number, because the mean of its divisors is an integer number (7019082).

Almost surely, 2^28053463 is an apocalyptic number.

28053463 is a deficient number, since it is larger than the sum of its proper divisors (22865).

28053463 is a wasteful number, since it uses less digits than its factorization.

28053463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22864.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 28053463 is about 5296.5519916263. The cubic root of 28053463 is about 303.8520423528.

The spelling of 28053463 in words is "twenty-eight million, fifty-three thousand, four hundred sixty-three".