28392963 has 8 divisors (see below), whose sum is σ = 37891776. Its totient is φ = 18911400.

The previous prime is 28392919. The next prime is 28392977. The reversal of 28392963 is 36929382.

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

It is not a de Polignac number, because 28392963 - 2⁶ = 28392899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28392163) 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, 208 + ... + 7538.

It is an arithmetic number, because the mean of its divisors is an integer number (4736472).

Almost surely, 2^28392963 is an apocalyptic number.

28392963 is a deficient number, since it is larger than the sum of its proper divisors (9498813).

28392963 is a wasteful number, since it uses less digits than its factorization.

28392963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8625.

The product of its digits is 139968, while the sum is 42.

The square root of 28392963 is about 5328.5047621261. The cubic root of 28392963 is about 305.0728590608.

The spelling of 28392963 in words is "twenty-eight million, three hundred ninety-two thousand, nine hundred sixty-three".