28423351 has 8 divisors (see below), whose sum is σ = 31146624. Its totient is φ = 25723320.

The previous prime is 28423349. The next prime is 28423361. The reversal of 28423351 is 15332482.

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

It is a cyclic number.

It is not a de Polignac number, because 28423351 - 2¹ = 28423349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28423321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3195 + ... + 8188.

It is an arithmetic number, because the mean of its divisors is an integer number (3893328).

Almost surely, 2^28423351 is an apocalyptic number.

28423351 is a deficient number, since it is larger than the sum of its proper divisors (2723273).

28423351 is a wasteful number, since it uses less digits than its factorization.

28423351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11621.

The product of its digits is 5760, while the sum is 28.

The square root of 28423351 is about 5331.3554561668. The cubic root of 28423351 is about 305.1816565433.

The spelling of 28423351 in words is "twenty-eight million, four hundred twenty-three thousand, three hundred fifty-one".