28672269 has 8 divisors (see below), whose sum is σ = 38255712. Its totient is φ = 19101840.

The previous prime is 28672261. The next prime is 28672277. The reversal of 28672269 is 96227682.

It is an interprime number because it is at equal distance from previous prime (28672261) and next prime (28672277).

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

It is not a de Polignac number, because 28672269 - 2³ = 28672261 is a prime.

It is a super-2 number, since 2×28672269² = 1644198019216722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28672269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28672261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4599 + ... + 8859.

It is an arithmetic number, because the mean of its divisors is an integer number (4781964).

Almost surely, 2^28672269 is an apocalyptic number.

It is an amenable number.

28672269 is a deficient number, since it is larger than the sum of its proper divisors (9583443).

28672269 is a wasteful number, since it uses less digits than its factorization.

28672269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6507.

The product of its digits is 145152, while the sum is 42.

The square root of 28672269 is about 5354.6492882354. The cubic root of 28672269 is about 306.0699464178.

The spelling of 28672269 in words is "twenty-eight million, six hundred seventy-two thousand, two hundred sixty-nine".