3903616 has 16 divisors (see below), whose sum is σ = 7776990. Its totient is φ = 1951744.

The previous prime is 3903593. The next prime is 3903619. The reversal of 3903616 is 6163093.

It can be written as a sum of positive squares in only one way, i.e., 2903616 + 1000000 = 1704^2 + 1000^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×3903616³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3903619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15121 + ... + 15376.

Almost surely, 2^3903616 is an apocalyptic number.

It is an amenable number.

3903616 is a deficient number, since it is larger than the sum of its proper divisors (3873374).

3903616 is an equidigital number, since it uses as much as digits as its factorization.

3903616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30511 (or 30499 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 3903616 is about 1975.7570700873. The cubic root of 3903616 is about 157.4547245356.

The spelling of 3903616 in words is "three million, nine hundred three thousand, six hundred sixteen".