103689918 has 12 divisors (see below), whose sum is σ = 224661528. Its totient is φ = 34563300.

The previous prime is 103689907. The next prime is 103689923. The reversal of 103689918 is 819986301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2880258 + ... + 2880293.

It is an arithmetic number, because the mean of its divisors is an integer number (18721794).

Almost surely, 2^103689918 is an apocalyptic number.

103689918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

103689918 is an abundant number, since it is smaller than the sum of its proper divisors (120971610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103689918 is a wasteful number, since it uses less digits than its factorization.

103689918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760559 (or 5760556 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 103689918 is about 10182.8246572353. The cubic root of 103689918 is about 469.7990962687.

The spelling of 103689918 in words is "one hundred three million, six hundred eighty-nine thousand, nine hundred eighteen".