28651323 has 16 divisors (see below), whose sum is σ = 39108096. Its totient is φ = 18651360.

The previous prime is 28651321. The next prime is 28651339. The reversal of 28651323 is 32315682.

It is not a de Polignac number, because 28651323 - 2¹ = 28651321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28651321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58108 + ... + 58598.

It is an arithmetic number, because the mean of its divisors is an integer number (2444256).

Almost surely, 2^28651323 is an apocalyptic number.

28651323 is a deficient number, since it is larger than the sum of its proper divisors (10456773).

28651323 is a wasteful number, since it uses less digits than its factorization.

28651323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914.

The product of its digits is 8640, while the sum is 30.

The square root of 28651323 is about 5352.6930605070. The cubic root of 28651323 is about 305.9953970003.

The spelling of 28651323 in words is "twenty-eight million, six hundred fifty-one thousand, three hundred twenty-three".