3956349829 has 4 divisors (see below), whose sum is σ = 4010546476. Its totient is φ = 3902153184.

The previous prime is 3956349823. The next prime is 3956349833. The reversal of 3956349829 is 9289436593.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 696168225 + 3260181604 = 26385^2 + 57098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3956349829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3956349823) 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 3 ways as a sum of consecutive naturals, for example, 27098214 + ... + 27098359.

It is an arithmetic number, because the mean of its divisors is an integer number (1002636619).

Almost surely, 2^3956349829 is an apocalyptic number.

It is an amenable number.

3956349829 is a deficient number, since it is larger than the sum of its proper divisors (54196647).

3956349829 is an equidigital number, since it uses as much as digits as its factorization.

3956349829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54196646.

The product of its digits is 12597120, while the sum is 58.

The square root of 3956349829 is about 62899.5216913452. The cubic root of 3956349829 is about 1581.6057260391.

The spelling of 3956349829 in words is "three billion, nine hundred fifty-six million, three hundred forty-nine thousand, eight hundred twenty-nine".