28465323 has 4 divisors (see below), whose sum is σ = 37953768. Its totient is φ = 18976880.

The previous prime is 28465319. The next prime is 28465331. The reversal of 28465323 is 32356482.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28465323 - 2² = 28465319 is a prime.

It is a super-2 number, since 2×28465323² = 1620549226988658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28465313) 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 in 3 ways as a sum of consecutive naturals, for example, 4744218 + ... + 4744223.

It is an arithmetic number, because the mean of its divisors is an integer number (9488442).

Almost surely, 2^28465323 is an apocalyptic number.

28465323 is a deficient number, since it is larger than the sum of its proper divisors (9488445).

28465323 is an equidigital number, since it uses as much as digits as its factorization.

28465323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488444.

The product of its digits is 34560, while the sum is 33.

The square root of 28465323 is about 5335.2903388663. The cubic root of 28465323 is about 305.3318005184.

The spelling of 28465323 in words is "twenty-eight million, four hundred sixty-five thousand, three hundred twenty-three".