3961001693 has 32 divisors (see below), whose sum is σ = 4503703680. Its totient is φ = 3452866560.

The previous prime is 3961001689. The next prime is 3961001699.

3961001693 is nontrivially palindromic in base 10.

3961001693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3961001693 - 2² = 3961001689 is a prime.

It is a super-3 number, since 3×3961001693³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961001699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5032646 + ... + 5033432.

It is an arithmetic number, because the mean of its divisors is an integer number (140740740).

Almost surely, 2^3961001693 is an apocalyptic number.

It is an amenable number.

3961001693 is a deficient number, since it is larger than the sum of its proper divisors (542701987).

3961001693 is a wasteful number, since it uses less digits than its factorization.

3961001693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 3961001693 is about 62936.4893603067. The cubic root of 3961001693 is about 1582.2253656337.

It can be divided in two parts, 396100 and 1693, that added together give a palindrome (397793).

The spelling of 3961001693 in words is "three billion, nine hundred sixty-one million, one thousand, six hundred ninety-three".