28814932247 has 2 divisors, whose sum is σ = 28814932248. Its totient is φ = 28814932246.

The previous prime is 28814932219. The next prime is 28814932253. The reversal of 28814932247 is 74223941882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28814932247 - 2³² = 24519964951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28814932195 and 28814932204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28814932207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14407466123 + 14407466124.

It is an arithmetic number, because the mean of its divisors is an integer number (14407466124).

Almost surely, 2^28814932247 is an apocalyptic number.

28814932247 is a deficient number, since it is larger than the sum of its proper divisors (1).

28814932247 is an equidigital number, since it uses as much as digits as its factorization.

28814932247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1548288, while the sum is 50.

The spelling of 28814932247 in words is "twenty-eight billion, eight hundred fourteen million, nine hundred thirty-two thousand, two hundred forty-seven".