103663444 has 12 divisors (see below), whose sum is σ = 182796768. Its totient is φ = 51435800.

The previous prime is 103663421. The next prime is 103663447. The reversal of 103663444 is 444366301.

It is a happy number.

It is a super-2 number, since 2×103663444² = 21492219243882272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103663447) 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, 98392 + ... + 99439.

It is an arithmetic number, because the mean of its divisors is an integer number (15233064).

Almost surely, 2^103663444 is an apocalyptic number.

It is an amenable number.

103663444 is a deficient number, since it is larger than the sum of its proper divisors (79133324).

103663444 is a wasteful number, since it uses less digits than its factorization.

103663444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197966 (or 197964 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 103663444 is about 10181.5246402491. The cubic root of 103663444 is about 469.7591099962.

The spelling of 103663444 in words is "one hundred three million, six hundred sixty-three thousand, four hundred forty-four".