3665436963 has 16 divisors (see below), whose sum is σ = 5201016480. Its totient is φ = 2288201216.

The previous prime is 3665436959. The next prime is 3665436979. The reversal of 3665436963 is 3696345663.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3665436963 - 2² = 3665436959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (3665436923) 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, 172368 + ... + 192461.

It is an arithmetic number, because the mean of its divisors is an integer number (325063530).

Almost surely, 2^3665436963 is an apocalyptic number.

3665436963 is a deficient number, since it is larger than the sum of its proper divisors (1535579517).

3665436963 is a wasteful number, since it uses less digits than its factorization.

3665436963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365046.

The product of its digits is 6298560, while the sum is 51.

The square root of 3665436963 is about 60542.8522866242. The cubic root of 3665436963 is about 1541.8492659346.

The spelling of 3665436963 in words is "three billion, six hundred sixty-five million, four hundred thirty-six thousand, nine hundred sixty-three".