103687644 has 24 divisors (see below), whose sum is σ = 250281360. Its totient is φ = 33370624.

The previous prime is 103687643. The next prime is 103687651. The reversal of 103687644 is 446786301.

It is a super-2 number, since 2×103687644² = 21502255036541472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103687643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148629 + ... + 149324.

It is an arithmetic number, because the mean of its divisors is an integer number (10428390).

Almost surely, 2^103687644 is an apocalyptic number.

It is an amenable number.

103687644 is an abundant number, since it is smaller than the sum of its proper divisors (146593716).

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

103687644 is a wasteful number, since it uses less digits than its factorization.

103687644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297989 (or 297987 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 103687644 is about 10182.7129980178. The cubic root of 103687644 is about 469.7956618912.

The spelling of 103687644 in words is "one hundred three million, six hundred eighty-seven thousand, six hundred forty-four".