7629943939 has 8 divisors (see below), whose sum is σ = 7963840512. Its totient is φ = 7296227400.

The previous prime is 7629943931. The next prime is 7629943963. The reversal of 7629943939 is 9393499267.

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 7629943939 - 2³ = 7629943931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7629943931) 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 7 ways as a sum of consecutive naturals, for example, 45502 + ... + 131644.

It is an arithmetic number, because the mean of its divisors is an integer number (995480064).

Almost surely, 2^7629943939 is an apocalyptic number.

7629943939 is a deficient number, since it is larger than the sum of its proper divisors (333896573).

7629943939 is a wasteful number, since it uses less digits than its factorization.

7629943939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90017.

The product of its digits is 19840464, while the sum is 61.

The square root of 7629943939 is about 87349.5503079438. The cubic root of 7629943939 is about 1968.6738942224.

The spelling of 7629943939 in words is "seven billion, six hundred twenty-nine million, nine hundred forty-three thousand, nine hundred thirty-nine".