3948279256 has 8 divisors (see below), whose sum is σ = 7403023620. Its totient is φ = 1974139624.

The previous prime is 3948279239. The next prime is 3948279259. The reversal of 3948279256 is 6529728493.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 3948279197 and 3948279206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948279259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246767446 + ... + 246767461.

Almost surely, 2^3948279256 is an apocalyptic number.

It is an amenable number.

3948279256 is a deficient number, since it is larger than the sum of its proper divisors (3454744364).

3948279256 is a wasteful number, since it uses less digits than its factorization.

3948279256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493534913 (or 493534909 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The square root of 3948279256 is about 62835.3344544294. The cubic root of 3948279256 is about 1580.5295527735.

The spelling of 3948279256 in words is "three billion, nine hundred forty-eight million, two hundred seventy-nine thousand, two hundred fifty-six".