103904649 has 12 divisors (see below), whose sum is σ = 151542976. Its totient is φ = 68596632.

The previous prime is 103904627. The next prime is 103904677. The reversal of 103904649 is 946409301.

103904649 is a `hidden beast` number, since 1 + 0 + 3 + 9 + 0 + 4 + 649 = 666.

It is not a de Polignac number, because 103904649 - 2⁵ = 103904617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103904609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55117 + ... + 56970.

Almost surely, 2^103904649 is an apocalyptic number.

It is an amenable number.

103904649 is a deficient number, since it is larger than the sum of its proper divisors (47638327).

103904649 is a wasteful number, since it uses less digits than its factorization.

103904649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112196 (or 112193 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 103904649 is about 10193.3629877484. The cubic root of 103904649 is about 470.1231742957.

The spelling of 103904649 in words is "one hundred three million, nine hundred four thousand, six hundred forty-nine".