3691953 has 8 divisors (see below), whose sum is σ = 5469600. Its totient is φ = 2461284.

The previous prime is 3691951. The next prime is 3691957. The reversal of 3691953 is 3591963.

3691953 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 3691953 - 2¹ = 3691951 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3691951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68343 + ... + 68396.

It is an arithmetic number, because the mean of its divisors is an integer number (683700).

Almost surely, 2^3691953 is an apocalyptic number.

It is an amenable number.

3691953 is a deficient number, since it is larger than the sum of its proper divisors (1777647).

3691953 is a wasteful number, since it uses less digits than its factorization.

3691953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136748 (or 136742 counting only the distinct ones).

The product of its digits is 21870, while the sum is 36.

The square root of 3691953 is about 1921.4455495798. The cubic root of 3691953 is about 154.5558286315. Note that the first 3 decimals are identical.

The spelling of 3691953 in words is "three million, six hundred ninety-one thousand, nine hundred fifty-three".