103647987 has 6 divisors (see below), whose sum is σ = 149713772. Its totient is φ = 69098652.

The previous prime is 103647977. The next prime is 103648003. The reversal of 103647987 is 789746301.

It is not a de Polignac number, because 103647987 - 2⁶ = 103647923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103647977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5758213 + ... + 5758230.

Almost surely, 2^103647987 is an apocalyptic number.

103647987 is a deficient number, since it is larger than the sum of its proper divisors (46065785).

103647987 is a wasteful number, since it uses less digits than its factorization.

103647987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11516449 (or 11516446 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 103647987 is about 10180.7655409601. The cubic root of 103647987 is about 469.7357606289.

The spelling of 103647987 in words is "one hundred three million, six hundred forty-seven thousand, nine hundred eighty-seven".