3665987343 has 40 divisors (see below), whose sum is σ = 5708619312. Its totient is φ = 2342317824.

The previous prime is 3665987293. The next prime is 3665987363. The reversal of 3665987343 is 3437895663.

3665987343 is a `hidden beast` number, since 3 + 6 + 6 + 598 + 7 + 3 + 43 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-3665987343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3665987343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665987363) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 191671 + ... + 209927.

Almost surely, 2^3665987343 is an apocalyptic number.

3665987343 is a deficient number, since it is larger than the sum of its proper divisors (2042631969).

3665987343 is a wasteful number, since it uses less digits than its factorization.

3665987343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18373 (or 18364 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 54.

The square root of 3665987343 is about 60547.3974915520. The cubic root of 3665987343 is about 1541.9264336809.

The spelling of 3665987343 in words is "three billion, six hundred sixty-five million, nine hundred eighty-seven thousand, three hundred forty-three".