107028781 has 2 divisors, whose sum is σ = 107028782. Its totient is φ = 107028780.

The previous prime is 107028769. The next prime is 107028793. The reversal of 107028781 is 187820701.

It is a balanced prime because it is at equal distance from previous prime (107028769) and next prime (107028793).

It can be written as a sum of positive squares in only one way, i.e., 89472681 + 17556100 = 9459^2 + 4190^2 .

It is a cyclic number.

It is not a de Polignac number, because 107028781 - 2¹⁷ = 106897709 is a prime.

It is a super-2 number, since 2×107028781² = 22910319924691922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107028281) 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, 53514390 + 53514391.

It is an arithmetic number, because the mean of its divisors is an integer number (53514391).

Almost surely, 2^107028781 is an apocalyptic number.

It is an amenable number.

107028781 is a deficient number, since it is larger than the sum of its proper divisors (1).

107028781 is an equidigital number, since it uses as much as digits as its factorization.

107028781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 107028781 is about 10345.4715213952. The cubic root of 107028781 is about 474.7885019645.

The spelling of 107028781 in words is "one hundred seven million, twenty-eight thousand, seven hundred eighty-one".