104716649 has 2 divisors, whose sum is σ = 104716650. Its totient is φ = 104716648.

The previous prime is 104716643. The next prime is 104716663. The reversal of 104716649 is 946617401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102657424 + 2059225 = 10132^2 + 1435^2 .

It is an emirp because it is prime and its reverse (946617401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104716649 - 2²⁰ = 103668073 is a prime.

It is not a weakly prime, because it can be changed into another prime (104716643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52358324 + 52358325.

It is an arithmetic number, because the mean of its divisors is an integer number (52358325).

Almost surely, 2^104716649 is an apocalyptic number.

It is an amenable number.

104716649 is a deficient number, since it is larger than the sum of its proper divisors (1).

104716649 is an equidigital number, since it uses as much as digits as its factorization.

104716649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 104716649 is about 10233.1153125527. The cubic root of 104716649 is about 471.3446464229.

The spelling of 104716649 in words is "one hundred four million, seven hundred sixteen thousand, six hundred forty-nine".