28115467 has 8 divisors (see below), whose sum is σ = 29827872. Its totient is φ = 26409600.

The previous prime is 28115443. The next prime is 28115473. The reversal of 28115467 is 76451182.

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 28115467 - 2¹⁵ = 28082699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28115167) 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, 9417 + ... + 12037.

It is an arithmetic number, because the mean of its divisors is an integer number (3728484).

Almost surely, 2^28115467 is an apocalyptic number.

28115467 is a deficient number, since it is larger than the sum of its proper divisors (1712405).

28115467 is a wasteful number, since it uses less digits than its factorization.

28115467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3269.

The product of its digits is 13440, while the sum is 34.

The square root of 28115467 is about 5302.4020028662. The cubic root of 28115467 is about 304.0757364105.

It can be divided in two parts, 28115 and 467, that added together give a palindrome (28582).

The spelling of 28115467 in words is "twenty-eight million, one hundred fifteen thousand, four hundred sixty-seven".