108679777 has 2 divisors, whose sum is σ = 108679778. Its totient is φ = 108679776.

The previous prime is 108679763. The next prime is 108679783. The reversal of 108679777 is 777976801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106832896 + 1846881 = 10336^2 + 1359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108679777 is a prime.

It is a super-2 number, since 2×108679777² = 23622587857539458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108679787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54339888 + 54339889.

It is an arithmetic number, because the mean of its divisors is an integer number (54339889).

Almost surely, 2^108679777 is an apocalyptic number.

It is an amenable number.

108679777 is a deficient number, since it is larger than the sum of its proper divisors (1).

108679777 is an equidigital number, since it uses as much as digits as its factorization.

108679777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1037232, while the sum is 52.

The square root of 108679777 is about 10424.9593284578. The cubic root of 108679777 is about 477.2173735702.

The spelling of 108679777 in words is "one hundred eight million, six hundred seventy-nine thousand, seven hundred seventy-seven".