28372999 has 2 divisors, whose sum is σ = 28373000. Its totient is φ = 28372998.

The previous prime is 28372997. The next prime is 28373003. The reversal of 28372999 is 99927382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28372999 - 2¹ = 28372997 is a prime.

Together with 28372997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28372997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14186499 + 14186500.

It is an arithmetic number, because the mean of its divisors is an integer number (14186500).

Almost surely, 2^28372999 is an apocalyptic number.

28372999 is a deficient number, since it is larger than the sum of its proper divisors (1).

28372999 is an equidigital number, since it uses as much as digits as its factorization.

28372999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 28372999 is about 5326.6311116878. The cubic root of 28372999 is about 305.0013401357.

The spelling of 28372999 in words is "twenty-eight million, three hundred seventy-two thousand, nine hundred ninety-nine".