28354999 has 2 divisors, whose sum is σ = 28355000. Its totient is φ = 28354998.

The previous prime is 28354969. The next prime is 28355023. The reversal of 28354999 is 99945382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28354999 - 2⁵ = 28354967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28354919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14177499 + 14177500.

It is an arithmetic number, because the mean of its divisors is an integer number (14177500).

Almost surely, 2^28354999 is an apocalyptic number.

28354999 is a deficient number, since it is larger than the sum of its proper divisors (1).

28354999 is an equidigital number, since it uses as much as digits as its factorization.

28354999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 49.

The square root of 28354999 is about 5324.9412203329. The cubic root of 28354999 is about 304.9368282676.

The spelling of 28354999 in words is "twenty-eight million, three hundred fifty-four thousand, nine hundred ninety-nine".