103616987 has 4 divisors (see below), whose sum is σ = 104237616. Its totient is φ = 102996360.

The previous prime is 103616977. The next prime is 103616993. The reversal of 103616987 is 789616301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789616301 = 181 ⋅4362521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103616987 is a prime.

It is a super-3 number, since 3×103616987³ (a number of 25 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103616977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310064 + ... + 310397.

It is an arithmetic number, because the mean of its divisors is an integer number (26059404).

Almost surely, 2^103616987 is an apocalyptic number.

103616987 is a deficient number, since it is larger than the sum of its proper divisors (620629).

103616987 is an equidigital number, since it uses as much as digits as its factorization.

103616987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620628.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 103616987 is about 10179.2429482747. The cubic root of 103616987 is about 469.6889249852.

The spelling of 103616987 in words is "one hundred three million, six hundred sixteen thousand, nine hundred eighty-seven".