28432526 has 4 divisors (see below), whose sum is σ = 42648792. Its totient is φ = 14216262.

The previous prime is 28432511. The next prime is 28432529. The reversal of 28432526 is 62523482.

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

It is a junction number, because it is equal to n+sod(n) for n = 28432492 and 28432501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28432529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7108130 + ... + 7108133.

It is an arithmetic number, because the mean of its divisors is an integer number (10662198).

Almost surely, 2^28432526 is an apocalyptic number.

28432526 is a deficient number, since it is larger than the sum of its proper divisors (14216266).

28432526 is a wasteful number, since it uses less digits than its factorization.

28432526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14216265.

The product of its digits is 23040, while the sum is 32.

The square root of 28432526 is about 5332.2158620971. The cubic root of 28432526 is about 305.2144903504.

The spelling of 28432526 in words is "twenty-eight million, four hundred thirty-two thousand, five hundred twenty-six".