28611267 has 4 divisors (see below), whose sum is σ = 38148360. Its totient is φ = 19074176.

The previous prime is 28611263. The next prime is 28611299. The reversal of 28611267 is 76211682.

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

It is a cyclic number.

It is not a de Polignac number, because 28611267 - 2² = 28611263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28611263) 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, 4768542 + ... + 4768547.

It is an arithmetic number, because the mean of its divisors is an integer number (9537090).

Almost surely, 2^28611267 is an apocalyptic number.

28611267 is a deficient number, since it is larger than the sum of its proper divisors (9537093).

28611267 is an equidigital number, since it uses as much as digits as its factorization.

28611267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9537092.

The product of its digits is 8064, while the sum is 33.

The square root of 28611267 is about 5348.9500838950. The cubic root of 28611267 is about 305.8527314765.

The spelling of 28611267 in words is "twenty-eight million, six hundred eleven thousand, two hundred sixty-seven".