3693503961 has 16 divisors (see below), whose sum is σ = 6253552000. Its totient is φ = 2110573584.

The previous prime is 3693503893. The next prime is 3693503981. The reversal of 3693503961 is 1693053963.

3693503961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3693503961 - 2⁷ = 3693503833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3693503981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9770986 + ... + 9771363.

It is an arithmetic number, because the mean of its divisors is an integer number (390847000).

Almost surely, 2^3693503961 is an apocalyptic number.

It is an amenable number.

3693503961 is a deficient number, since it is larger than the sum of its proper divisors (2560048039).

3693503961 is a wasteful number, since it uses less digits than its factorization.

3693503961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19542365 (or 19542359 counting only the distinct ones).

The product of its (nonzero) digits is 393660, while the sum is 45.

The square root of 3693503961 is about 60774.2047335874. The cubic root of 3693503961 is about 1545.7746817237.

The spelling of 3693503961 in words is "three billion, six hundred ninety-three million, five hundred three thousand, nine hundred sixty-one".