28663022 has 8 divisors (see below), whose sum is σ = 43018896. Its totient is φ = 14323392.

The previous prime is 28663007. The next prime is 28663027. The reversal of 28663022 is 22036682.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28663027) 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, 2423 + ... + 7949.

It is an arithmetic number, because the mean of its divisors is an integer number (5377362).

Almost surely, 2^28663022 is an apocalyptic number.

28663022 is a deficient number, since it is larger than the sum of its proper divisors (14355874).

28663022 is a wasteful number, since it uses less digits than its factorization.

28663022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8122.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 28663022 is about 5353.7857633641. The cubic root of 28663022 is about 306.0370396732.

The spelling of 28663022 in words is "twenty-eight million, six hundred sixty-three thousand, twenty-two".