28879562 has 4 divisors (see below), whose sum is σ = 43319346. Its totient is φ = 14439780.

The previous prime is 28879561. The next prime is 28879567. The reversal of 28879562 is 26597882.

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

It can be written as a sum of positive squares in only one way, i.e., 19704721 + 9174841 = 4439^2 + 3029^2 .

It is not an unprimeable number, because it can be changed into a prime (28879561) 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, 7219889 + ... + 7219892.

Almost surely, 2^28879562 is an apocalyptic number.

28879562 is a deficient number, since it is larger than the sum of its proper divisors (14439784).

28879562 is a wasteful number, since it uses less digits than its factorization.

28879562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14439783.

The product of its digits is 483840, while the sum is 47.

The square root of 28879562 is about 5373.9707851830. The cubic root of 28879562 is about 306.8057778337.

The spelling of 28879562 in words is "twenty-eight million, eight hundred seventy-nine thousand, five hundred sixty-two".