28873151 has 2 divisors, whose sum is σ = 28873152. Its totient is φ = 28873150.

The previous prime is 28873147. The next prime is 28873189. The reversal of 28873151 is 15137882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28873151 - 2² = 28873147 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28873751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14436575 + 14436576.

It is an arithmetic number, because the mean of its divisors is an integer number (14436576).

Almost surely, 2^28873151 is an apocalyptic number.

28873151 is a deficient number, since it is larger than the sum of its proper divisors (1).

28873151 is an equidigital number, since it uses as much as digits as its factorization.

28873151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 35.

The square root of 28873151 is about 5373.3742657663. The cubic root of 28873151 is about 306.7830734565.

The spelling of 28873151 in words is "twenty-eight million, eight hundred seventy-three thousand, one hundred fifty-one".