4001953 has 8 divisors (see below), whose sum is σ = 4268160. Its totient is φ = 3739200.

The previous prime is 4001947. The next prime is 4001999. The reversal of 4001953 is 3591004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4001953 is a prime.

It is a super-3 number, since 3×4001953³ (a number of 21 digits) contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4001453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1788 + ... + 3346.

It is an arithmetic number, because the mean of its divisors is an integer number (533520).

Almost surely, 2^4001953 is an apocalyptic number.

It is an amenable number.

4001953 is a deficient number, since it is larger than the sum of its proper divisors (266207).

4001953 is a wasteful number, since it uses less digits than its factorization.

4001953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 4001953 is about 2000.4881904175. The cubic root of 4001953 is about 158.7659359454.

Adding to 4001953 its reverse (3591004), we get a palindrome (7592957).

The spelling of 4001953 in words is "four million, one thousand, nine hundred fifty-three".