105647879 has 2 divisors, whose sum is σ = 105647880. Its totient is φ = 105647878.

The previous prime is 105647849. The next prime is 105647903. The reversal of 105647879 is 978746501.

It is a strong prime.

It is an emirp because it is prime and its reverse (978746501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105647879 - 2⁸ = 105647623 is a prime.

It is a super-2 number, since 2×105647879² = 22322948674397282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105647849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52823939 + 52823940.

It is an arithmetic number, because the mean of its divisors is an integer number (52823940).

Almost surely, 2^105647879 is an apocalyptic number.

105647879 is a deficient number, since it is larger than the sum of its proper divisors (1).

105647879 is an equidigital number, since it uses as much as digits as its factorization.

105647879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 105647879 is about 10278.5154083652. The cubic root of 105647879 is about 472.7377249673.

The spelling of 105647879 in words is "one hundred five million, six hundred forty-seven thousand, eight hundred seventy-nine".