104689649 has 8 divisors (see below), whose sum is σ = 107397312. Its totient is φ = 101994480.

The previous prime is 104689619. The next prime is 104689679. The reversal of 104689649 is 946986401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (104689619) and next prime (104689679).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104689649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104689619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15212 + ... + 20994.

It is an arithmetic number, because the mean of its divisors is an integer number (13424664).

Almost surely, 2^104689649 is an apocalyptic number.

It is an amenable number.

104689649 is a deficient number, since it is larger than the sum of its proper divisors (2707663).

104689649 is an equidigital number, since it uses as much as digits as its factorization.

104689649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 104689649 is about 10231.7959811560. The cubic root of 104689649 is about 471.3041326507.

The spelling of 104689649 in words is "one hundred four million, six hundred eighty-nine thousand, six hundred forty-nine".