28426323 has 8 divisors (see below), whose sum is σ = 38926288. Its totient is φ = 18438624.

The previous prime is 28426319. The next prime is 28426327. The reversal of 28426323 is 32362482.

It is an interprime number because it is at equal distance from previous prime (28426319) and next prime (28426327).

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

It is not a de Polignac number, because 28426323 - 2² = 28426319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28426327) 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 7 ways as a sum of consecutive naturals, for example, 127936 + ... + 128157.

It is an arithmetic number, because the mean of its divisors is an integer number (4865786).

Almost surely, 2^28426323 is an apocalyptic number.

28426323 is a deficient number, since it is larger than the sum of its proper divisors (10499965).

28426323 is a wasteful number, since it uses less digits than its factorization.

28426323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256133.

The product of its digits is 13824, while the sum is 30.

The square root of 28426323 is about 5331.6341772481. The cubic root of 28426323 is about 305.1922929654.

The spelling of 28426323 in words is "twenty-eight million, four hundred twenty-six thousand, three hundred twenty-three".