3657996 has 18 divisors (see below), whose sum is σ = 9246692. Its totient is φ = 1219320.

The previous prime is 3657977. The next prime is 3658001. The reversal of 3657996 is 6997563.

3657996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50770 + ... + 50841.

Almost surely, 2^3657996 is an apocalyptic number.

3657996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3657996 is an abundant number, since it is smaller than the sum of its proper divisors (5588696).

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

3657996 is a wasteful number, since it uses less digits than its factorization.

3657996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101621 (or 101616 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 3657996 is about 1912.5888214669. The cubic root of 3657996 is about 154.0805223469.

The spelling of 3657996 in words is "three million, six hundred fifty-seven thousand, nine hundred ninety-six".