3709663 has 4 divisors (see below), whose sum is σ = 3788640. Its totient is φ = 3630688.

The previous prime is 3709661. The next prime is 3709681. The reversal of 3709663 is 3669073.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3709663 - 2¹ = 3709661 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3709661) 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, 39418 + ... + 39511.

It is an arithmetic number, because the mean of its divisors is an integer number (947160).

Almost surely, 2^3709663 is an apocalyptic number.

3709663 is a deficient number, since it is larger than the sum of its proper divisors (78977).

3709663 is an equidigital number, since it uses as much as digits as its factorization.

3709663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78976.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 3709663 is about 1926.0485455980. The cubic root of 3709663 is about 154.8025651301.

The spelling of 3709663 in words is "three million, seven hundred nine thousand, six hundred sixty-three".