6403616 has 24 divisors (see below), whose sum is σ = 12764304. Its totient is φ = 3161920.

The previous prime is 6403601. The next prime is 6403643. The reversal of 6403616 is 6163046.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1451 + ... + 3861.

It is an arithmetic number, because the mean of its divisors is an integer number (531846).

Almost surely, 2^6403616 is an apocalyptic number.

It is an amenable number.

6403616 is a deficient number, since it is larger than the sum of its proper divisors (6360688).

6403616 is a wasteful number, since it uses less digits than its factorization.

6403616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504 (or 2496 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 6403616 is about 2530.5367019666. The cubic root of 6403616 is about 185.6985133971.

The spelling of 6403616 in words is "six million, four hundred three thousand, six hundred sixteen".