3965115693 has 32 divisors (see below), whose sum is σ = 6769520640. Its totient is φ = 2004125760.

The previous prime is 3965115689. The next prime is 3965115697.

3965115693 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (3965115689) and next prime (3965115697).

It is not a de Polignac number, because 3965115693 - 2² = 3965115689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965115697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223413 + ... + 240506.

It is an arithmetic number, because the mean of its divisors is an integer number (211547520).

Almost surely, 2^3965115693 is an apocalyptic number.

3965115693 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3965115693 is a deficient number, since it is larger than the sum of its proper divisors (2804404947).

3965115693 is a wasteful number, since it uses less digits than its factorization.

3965115693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463977.

The product of its digits is 656100, while the sum is 48.

The square root of 3965115693 is about 62969.1646204712. The cubic root of 3965115693 is about 1582.7729563183.

It can be divided in two parts, 396511 and 5693, that added together give a palindrome (402204).

The spelling of 3965115693 in words is "three billion, nine hundred sixty-five million, one hundred fifteen thousand, six hundred ninety-three".