28712966 has 8 divisors (see below), whose sum is σ = 45603000. Its totient is φ = 13511968.

The previous prime is 28712963. The next prime is 28712969. The reversal of 28712966 is 66921782.

It is an interprime number because it is at equal distance from previous prime (28712963) and next prime (28712969).

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28712963) 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, 422216 + ... + 422283.

It is an arithmetic number, because the mean of its divisors is an integer number (5700375).

Almost surely, 2^28712966 is an apocalyptic number.

28712966 is a deficient number, since it is larger than the sum of its proper divisors (16890034).

28712966 is a wasteful number, since it uses less digits than its factorization.

28712966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844518.

The product of its digits is 72576, while the sum is 41.

The square root of 28712966 is about 5358.4480962308. The cubic root of 28712966 is about 306.2146883623.

The spelling of 28712966 in words is "twenty-eight million, seven hundred twelve thousand, nine hundred sixty-six".