28951323 has 8 divisors (see below), whose sum is σ = 40872528. Its totient is φ = 18165504.

The previous prime is 28951297. The next prime is 28951327. The reversal of 28951323 is 32315982.

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

It is not a de Polignac number, because 28951323 - 2⁵ = 28951291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28951327) 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, 283786 + ... + 283887.

It is an arithmetic number, because the mean of its divisors is an integer number (5109066).

Almost surely, 2^28951323 is an apocalyptic number.

28951323 is a deficient number, since it is larger than the sum of its proper divisors (11921205).

28951323 is a wasteful number, since it uses less digits than its factorization.

28951323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567693.

The product of its digits is 12960, while the sum is 33.

The square root of 28951323 is about 5380.6433630190. The cubic root of 28951323 is about 307.0596884088.

The spelling of 28951323 in words is "twenty-eight million, nine hundred fifty-one thousand, three hundred twenty-three".