28465678 has 8 divisors (see below), whose sum is σ = 42771600. Its totient is φ = 14208480.

The previous prime is 28465673. The next prime is 28465681. The reversal of 28465678 is 87656482.

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 (28465673) 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, 10683 + ... + 13078.

It is an arithmetic number, because the mean of its divisors is an integer number (5346450).

Almost surely, 2^28465678 is an apocalyptic number.

28465678 is a deficient number, since it is larger than the sum of its proper divisors (14305922).

28465678 is a wasteful number, since it uses less digits than its factorization.

28465678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24362.

The product of its digits is 645120, while the sum is 46.

The square root of 28465678 is about 5335.3236078049. The cubic root of 28465678 is about 305.3330698094. Note that the first 3 decimals are identical.

The spelling of 28465678 in words is "twenty-eight million, four hundred sixty-five thousand, six hundred seventy-eight".