104077989 has 12 divisors (see below), whose sum is σ = 150441772. Its totient is φ = 69336000.

The previous prime is 104077979. The next prime is 104077999. The reversal of 104077989 is 989770401.

It is an interprime number because it is at equal distance from previous prime (104077979) and next prime (104077999).

It can be written as a sum of positive squares in 2 ways, for example, as 20629764 + 83448225 = 4542^2 + 9135^2 .

It is not a de Polignac number, because 104077989 - 2⁴ = 104077973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104077949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12999 + ... + 19419.

Almost surely, 2^104077989 is an apocalyptic number.

It is an amenable number.

104077989 is a deficient number, since it is larger than the sum of its proper divisors (46363783).

104077989 is a wasteful number, since it uses less digits than its factorization.

104077989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8228 (or 8225 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 104077989 is about 10201.8620359227. The cubic root of 104077989 is about 470.3844583275.

The spelling of 104077989 in words is "one hundred four million, seventy-seven thousand, nine hundred eighty-nine".