3929065623 has 20 divisors (see below), whose sum is σ = 6707823760. Its totient is φ = 2245180032.

The previous prime is 3929065603. The next prime is 3929065669. The reversal of 3929065623 is 3265609293.

It is a de Polignac number, because none of the positive numbers 2^k-3929065623 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 (3929065603) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3464218 + ... + 3465351.

It is an arithmetic number, because the mean of its divisors is an integer number (335391188).

Almost surely, 2^3929065623 is an apocalyptic number.

3929065623 is a deficient number, since it is larger than the sum of its proper divisors (2778758137).

3929065623 is an equidigital number, since it uses as much as digits as its factorization.

3929065623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929588 (or 6929579 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 45.

The square root of 3929065623 is about 62682.2592365655. The cubic root of 3929065623 is about 1577.9615895174.

The spelling of 3929065623 in words is "three billion, nine hundred twenty-nine million, sixty-five thousand, six hundred twenty-three".