28936963 has 8 divisors (see below), whose sum is σ = 32103360. Its totient is φ = 25859880.

The previous prime is 28936951. The next prime is 28936987. The reversal of 28936963 is 36963982.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28936963 - 2⁵ = 28936931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28936903) 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, 21645 + ... + 22942.

It is an arithmetic number, because the mean of its divisors is an integer number (4012920).

Almost surely, 2^28936963 is an apocalyptic number.

28936963 is a deficient number, since it is larger than the sum of its proper divisors (3166397).

28936963 is a wasteful number, since it uses less digits than its factorization.

28936963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44657.

The product of its digits is 419904, while the sum is 46.

The square root of 28936963 is about 5379.3087845931. The cubic root of 28936963 is about 307.0089123027.

The spelling of 28936963 in words is "twenty-eight million, nine hundred thirty-six thousand, nine hundred sixty-three".