108661747 has 2 divisors, whose sum is σ = 108661748. Its totient is φ = 108661746.

The previous prime is 108661733. The next prime is 108661793. The reversal of 108661747 is 747166801.

It is a weak prime.

It is an emirp because it is prime and its reverse (747166801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108661747 - 2²³ = 100273139 is a prime.

It is a super-2 number, since 2×108661747² = 23614750522184018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108661447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54330873 + 54330874.

It is an arithmetic number, because the mean of its divisors is an integer number (54330874).

Almost surely, 2^108661747 is an apocalyptic number.

108661747 is a deficient number, since it is larger than the sum of its proper divisors (1).

108661747 is an equidigital number, since it uses as much as digits as its factorization.

108661747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 108661747 is about 10424.0945410141. The cubic root of 108661747 is about 477.1909819533.

The spelling of 108661747 in words is "one hundred eight million, six hundred sixty-one thousand, seven hundred forty-seven".