3948796657 has 8 divisors (see below), whose sum is σ = 4476368960. Its totient is φ = 3453198480.

The previous prime is 3948796613. The next prime is 3948796661. The reversal of 3948796657 is 7566978493.

It is a happy number.

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-3948796657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3948796667) 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, 7993269 + ... + 7993762.

It is an arithmetic number, because the mean of its divisors is an integer number (559546120).

Almost surely, 2^3948796657 is an apocalyptic number.

It is an amenable number.

3948796657 is a deficient number, since it is larger than the sum of its proper divisors (527572303).

3948796657 is a wasteful number, since it uses less digits than its factorization.

3948796657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15987063.

The product of its digits is 68584320, while the sum is 64.

The square root of 3948796657 is about 62839.4514377712. The cubic root of 3948796657 is about 1580.5985897556.

The spelling of 3948796657 in words is "three billion, nine hundred forty-eight million, seven hundred ninety-six thousand, six hundred fifty-seven".