28852991 has 2 divisors, whose sum is σ = 28852992. Its totient is φ = 28852990.

The previous prime is 28852987. The next prime is 28853021. The reversal of 28852991 is 19925882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28852991 - 2² = 28852987 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 (28852981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14426495 + 14426496.

It is an arithmetic number, because the mean of its divisors is an integer number (14426496).

Almost surely, 2^28852991 is an apocalyptic number.

28852991 is a deficient number, since it is larger than the sum of its proper divisors (1).

28852991 is an equidigital number, since it uses as much as digits as its factorization.

28852991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 44.

The square root of 28852991 is about 5371.4980219674. The cubic root of 28852991 is about 306.7116554717.

The spelling of 28852991 in words is "twenty-eight million, eight hundred fifty-two thousand, nine hundred ninety-one".