103968639 has 6 divisors (see below), whose sum is σ = 150176936. Its totient is φ = 69312420.

The previous prime is 103968619. The next prime is 103968659. The reversal of 103968639 is 936869301.

103968639 is a `hidden beast` number, since 1 + 0 + 3 + 9 + 6 + 8 + 639 = 666.

It is an interprime number because it is at equal distance from previous prime (103968619) and next prime (103968659).

It is not a de Polignac number, because 103968639 - 2⁵ = 103968607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103968594 and 103968603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103968619) 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, 5776027 + ... + 5776044.

Almost surely, 2^103968639 is an apocalyptic number.

103968639 is a deficient number, since it is larger than the sum of its proper divisors (46208297).

103968639 is a wasteful number, since it uses less digits than its factorization.

103968639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11552077 (or 11552074 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 103968639 is about 10196.5013117245. The cubic root of 103968639 is about 470.2196634285.

The spelling of 103968639 in words is "one hundred three million, nine hundred sixty-eight thousand, six hundred thirty-nine".