28249467 has 8 divisors (see below), whose sum is σ = 38182224. Its totient is φ = 18574848.

The previous prime is 28249423. The next prime is 28249483. The reversal of 28249467 is 76494282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28249467 - 2¹⁰ = 28248443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28244467) 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, 64278 + ... + 64715.

It is an arithmetic number, because the mean of its divisors is an integer number (4772778).

Almost surely, 2^28249467 is an apocalyptic number.

28249467 is a deficient number, since it is larger than the sum of its proper divisors (9932757).

28249467 is a wasteful number, since it uses less digits than its factorization.

28249467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129069.

The product of its digits is 193536, while the sum is 42.

The square root of 28249467 is about 5315.0227657085. The cubic root of 28249467 is about 304.5580520303.

The spelling of 28249467 in words is "twenty-eight million, two hundred forty-nine thousand, four hundred sixty-seven".