28679449 has 8 divisors (see below), whose sum is σ = 29376000. Its totient is φ = 27991392.

The previous prime is 28679429. The next prime is 28679461. The reversal of 28679449 is 94497682.

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 28679449 - 2¹³ = 28671257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28679419) 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, 4992 + ... + 9070.

It is an arithmetic number, because the mean of its divisors is an integer number (3672000).

Almost surely, 2^28679449 is an apocalyptic number.

It is an amenable number.

28679449 is a deficient number, since it is larger than the sum of its proper divisors (696551).

28679449 is an equidigital number, since it uses as much as digits as its factorization.

28679449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247.

The product of its digits is 870912, while the sum is 49.

The square root of 28679449 is about 5355.3196916711. The cubic root of 28679449 is about 306.0954925742.

The spelling of 28679449 in words is "twenty-eight million, six hundred seventy-nine thousand, four hundred forty-nine".