28679467 has 4 divisors (see below), whose sum is σ = 28705536. Its totient is φ = 28653400.

The previous prime is 28679461. The next prime is 28679473. The reversal of 28679467 is 76497682.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (28679461) and next prime (28679473).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28679467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28679467.

It is not an unprimeable number, because it can be changed into a prime (28679461) 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, 11308 + ... + 13609.

It is an arithmetic number, because the mean of its divisors is an integer number (7176384).

Almost surely, 2^28679467 is an apocalyptic number.

28679467 is a deficient number, since it is larger than the sum of its proper divisors (26069).

28679467 is a wasteful number, since it uses less digits than its factorization.

28679467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26068.

The product of its digits is 1016064, while the sum is 49.

The square root of 28679467 is about 5355.3213722428. The cubic root of 28679467 is about 306.0955566122.

The spelling of 28679467 in words is "twenty-eight million, six hundred seventy-nine thousand, four hundred sixty-seven".