28966918 has 8 divisors (see below), whose sum is σ = 43505280. Its totient is φ = 14465160.

The previous prime is 28966909. The next prime is 28966921. The reversal of 28966918 is 81966982.

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7078 + ... + 10393.

It is an arithmetic number, because the mean of its divisors is an integer number (5438160).

Almost surely, 2^28966918 is an apocalyptic number.

28966918 is a deficient number, since it is larger than the sum of its proper divisors (14538362).

28966918 is a wasteful number, since it uses less digits than its factorization.

28966918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18302.

The product of its digits is 373248, while the sum is 49.

The square root of 28966918 is about 5382.0923440610. The cubic root of 28966918 is about 307.1148123869.

The spelling of 28966918 in words is "twenty-eight million, nine hundred sixty-six thousand, nine hundred eighteen".