28151323 has 8 divisors (see below), whose sum is σ = 28898640. Its totient is φ = 27413760.

The previous prime is 28151311. The next prime is 28151327. The reversal of 28151323 is 32315182.

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 28151323 - 2¹³ = 28143131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28151327) 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, 3603 + ... + 8323.

It is an arithmetic number, because the mean of its divisors is an integer number (3612330).

Almost surely, 2^28151323 is an apocalyptic number.

28151323 is a deficient number, since it is larger than the sum of its proper divisors (747317).

28151323 is an equidigital number, since it uses as much as digits as its factorization.

28151323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4877.

The product of its digits is 1440, while the sum is 25.

The square root of 28151323 is about 5305.7820347240. The cubic root of 28151323 is about 304.2049453379.

The spelling of 28151323 in words is "twenty-eight million, one hundred fifty-one thousand, three hundred twenty-three".