28848931 has 2 divisors, whose sum is σ = 28848932. Its totient is φ = 28848930.

The previous prime is 28848901. The next prime is 28848947. The reversal of 28848931 is 13984882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28848931 - 2⁷ = 28848803 is a prime.

It is a super-2 number, since 2×28848931² = 1664521639685522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28848901) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14424465 + 14424466.

It is an arithmetic number, because the mean of its divisors is an integer number (14424466).

Almost surely, 2^28848931 is an apocalyptic number.

28848931 is a deficient number, since it is larger than the sum of its proper divisors (1).

28848931 is an equidigital number, since it uses as much as digits as its factorization.

28848931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 43.

The square root of 28848931 is about 5371.1200880263. The cubic root of 28848931 is about 306.6972686590.

The spelling of 28848931 in words is "twenty-eight million, eight hundred forty-eight thousand, nine hundred thirty-one".