28353763 has 4 divisors (see below), whose sum is σ = 28368648. Its totient is φ = 28338880.

The previous prime is 28353751. The next prime is 28353817. The reversal of 28353763 is 36735382.

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 28353763 - 2¹³ = 28345571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28353163) 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, 4078 + ... + 8563.

It is an arithmetic number, because the mean of its divisors is an integer number (7092162).

Almost surely, 2^28353763 is an apocalyptic number.

28353763 is a deficient number, since it is larger than the sum of its proper divisors (14885).

28353763 is a wasteful number, since it uses less digits than its factorization.

28353763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14884.

The product of its digits is 90720, while the sum is 37.

The square root of 28353763 is about 5324.8251614490. The cubic root of 28353763 is about 304.9323974511.

The spelling of 28353763 in words is "twenty-eight million, three hundred fifty-three thousand, seven hundred sixty-three".