108623609 has 2 divisors, whose sum is σ = 108623610. Its totient is φ = 108623608.

The previous prime is 108623573. The next prime is 108623651. The reversal of 108623609 is 906326801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66373609 + 42250000 = 8147^2 + 6500^2 .

It is a cyclic number.

It is not a de Polignac number, because 108623609 - 2¹² = 108619513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108623509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54311804 + 54311805.

It is an arithmetic number, because the mean of its divisors is an integer number (54311805).

Almost surely, 2^108623609 is an apocalyptic number.

It is an amenable number.

108623609 is a deficient number, since it is larger than the sum of its proper divisors (1).

108623609 is an equidigital number, since it uses as much as digits as its factorization.

108623609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 108623609 is about 10422.2650609165. The cubic root of 108623609 is about 477.1351474033.

The spelling of 108623609 in words is "one hundred eight million, six hundred twenty-three thousand, six hundred nine".