3709645667 has 16 divisors (see below), whose sum is σ = 4834291392. Its totient is φ = 2762449920.

The previous prime is 3709645651. The next prime is 3709645711. The reversal of 3709645667 is 7665469073.

It is a cyclic number.

It is not a de Polignac number, because 3709645667 - 2⁴ = 3709645651 is a prime.

It is a super-2 number, since 2×3709645667² = 27522941949383749778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3709645607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197434 + ... + 1200527.

It is an arithmetic number, because the mean of its divisors is an integer number (302143212).

Almost surely, 2^3709645667 is an apocalyptic number.

3709645667 is a deficient number, since it is larger than the sum of its proper divisors (1124645725).

3709645667 is a wasteful number, since it uses less digits than its factorization.

3709645667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397998.

The product of its (nonzero) digits is 5715360, while the sum is 53.

The square root of 3709645667 is about 60906.8605905772. The cubic root of 3709645667 is about 1548.0232403028.

The spelling of 3709645667 in words is "three billion, seven hundred nine million, six hundred forty-five thousand, six hundred sixty-seven".