28823426 has 4 divisors (see below), whose sum is σ = 43235142. Its totient is φ = 14411712.

The previous prime is 28823413. The next prime is 28823441. The reversal of 28823426 is 62432882.

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., 28462225 + 361201 = 5335^2 + 601^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7205855 + ... + 7205858.

Almost surely, 2^28823426 is an apocalyptic number.

28823426 is a deficient number, since it is larger than the sum of its proper divisors (14411716).

28823426 is a wasteful number, since it uses less digits than its factorization.

28823426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14411715.

The product of its digits is 36864, while the sum is 35.

The square root of 28823426 is about 5368.7452910340. The cubic root of 28823426 is about 306.6068595300.

The spelling of 28823426 in words is "twenty-eight million, eight hundred twenty-three thousand, four hundred twenty-six".