28080667 has 8 divisors (see below), whose sum is σ = 28814400. Its totient is φ = 27352704.

The previous prime is 28080659. The next prime is 28080673. The reversal of 28080667 is 76608082.

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 28080667 - 2³ = 28080659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28080607) 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, 9459 + ... + 12067.

It is an arithmetic number, because the mean of its divisors is an integer number (3601800).

Almost surely, 2^28080667 is an apocalyptic number.

28080667 is a deficient number, since it is larger than the sum of its proper divisors (733733).

28080667 is a wasteful number, since it uses less digits than its factorization.

28080667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 28080667 is about 5299.1194551548. The cubic root of 28080667 is about 303.9502277414.

The spelling of 28080667 in words is "twenty-eight million, eighty thousand, six hundred sixty-seven".