28446567 has 8 divisors (see below), whose sum is σ = 38448624. Its totient is φ = 18704448.

The previous prime is 28446541. The next prime is 28446569. The reversal of 28446567 is 76564482.

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

It is not a de Polignac number, because 28446567 - 2¹⁴ = 28430183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28446569) 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, 64728 + ... + 65165.

It is an arithmetic number, because the mean of its divisors is an integer number (4806078).

Almost surely, 2^28446567 is an apocalyptic number.

28446567 is a deficient number, since it is larger than the sum of its proper divisors (10002057).

28446567 is a wasteful number, since it uses less digits than its factorization.

28446567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129969.

The product of its digits is 322560, while the sum is 42.

The square root of 28446567 is about 5333.5323192046. The cubic root of 28446567 is about 305.2647240324.

The spelling of 28446567 in words is "twenty-eight million, four hundred forty-six thousand, five hundred sixty-seven".