28965766 has 8 divisors (see below), whose sum is σ = 45735480. Its totient is φ = 13720608.

The previous prime is 28965737. The next prime is 28965767. The reversal of 28965766 is 66756982.

It is a happy number.

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 (28965767) 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, 381091 + ... + 381166.

It is an arithmetic number, because the mean of its divisors is an integer number (5716935).

Almost surely, 2^28965766 is an apocalyptic number.

28965766 is a deficient number, since it is larger than the sum of its proper divisors (16769714).

28965766 is a wasteful number, since it uses less digits than its factorization.

28965766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762278.

The product of its digits is 1088640, while the sum is 49.

The square root of 28965766 is about 5381.9853214218. The cubic root of 28965766 is about 307.1107410649.

The spelling of 28965766 in words is "twenty-eight million, nine hundred sixty-five thousand, seven hundred sixty-six".