3953729 has 8 divisors (see below), whose sum is σ = 4482240. Its totient is φ = 3457296.

The previous prime is 3953717. The next prime is 3953749. The reversal of 3953729 is 9273593.

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

It is a cyclic number.

It is not a de Polignac number, because 3953729 - 2⁸ = 3953473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3953692 and 3953701.

It is not an unprimeable number, because it can be changed into a prime (3953749) 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, 7757 + ... + 8250.

It is an arithmetic number, because the mean of its divisors is an integer number (560280).

Almost surely, 2^3953729 is an apocalyptic number.

It is an amenable number.

3953729 is a deficient number, since it is larger than the sum of its proper divisors (528511).

3953729 is a wasteful number, since it uses less digits than its factorization.

3953729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16039.

The product of its digits is 51030, while the sum is 38.

The square root of 3953729 is about 1988.3986018905. The cubic root of 3953729 is about 158.1256411312.

The spelling of 3953729 in words is "three million, nine hundred fifty-three thousand, seven hundred twenty-nine".