28446529 has 4 divisors (see below), whose sum is σ = 28459440. Its totient is φ = 28433620.

The previous prime is 28446527. The next prime is 28446533. The reversal of 28446529 is 92564482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28446529 - 2¹ = 28446527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28446491 and 28446500.

It is not an unprimeable number, because it can be changed into a prime (28446527) 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 3 ways as a sum of consecutive naturals, for example, 2227 + ... + 7864.

It is an arithmetic number, because the mean of its divisors is an integer number (7114860).

Almost surely, 2^28446529 is an apocalyptic number.

It is an amenable number.

28446529 is a deficient number, since it is larger than the sum of its proper divisors (12911).

28446529 is a wasteful number, since it uses less digits than its factorization.

28446529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12910.

The product of its digits is 138240, while the sum is 40.

The square root of 28446529 is about 5333.5287568363. The cubic root of 28446529 is about 305.2645881043.

The spelling of 28446529 in words is "twenty-eight million, four hundred forty-six thousand, five hundred twenty-nine".