103446621 has 24 divisors (see below), whose sum is σ = 159461120. Its totient is φ = 64431936.

The previous prime is 103446613. The next prime is 103446643. The reversal of 103446621 is 126644301.

103446621 is a `hidden beast` number, since 1 + 0 + 34 + 4 + 6 + 621 = 666.

It is not a de Polignac number, because 103446621 - 2³ = 103446613 is a prime.

It is a super-5 number, since 5×103446621⁵ (a number of 41 digits) contains 55555 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103446601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8340 + ... + 16626.

Almost surely, 2^103446621 is an apocalyptic number.

It is an amenable number.

103446621 is a deficient number, since it is larger than the sum of its proper divisors (56014499).

103446621 is a wasteful number, since it uses less digits than its factorization.

103446621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8385 (or 8382 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 103446621 is about 10170.8712016228. The cubic root of 103446621 is about 469.4313645172.

The spelling of 103446621 in words is "one hundred three million, four hundred forty-six thousand, six hundred twenty-one".