3956267217 has 32 divisors (see below), whose sum is σ = 6555762432. Its totient is φ = 2070226944.

The previous prime is 3956267209. The next prime is 3956267233. The reversal of 3956267217 is 7127626593.

It is not a de Polignac number, because 3956267217 - 2³ = 3956267209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3956267017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136548 + ... + 162965.

It is an arithmetic number, because the mean of its divisors is an integer number (204867576).

Almost surely, 2^3956267217 is an apocalyptic number.

3956267217 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3956267217 is a deficient number, since it is larger than the sum of its proper divisors (2599495215).

3956267217 is a wasteful number, since it uses less digits than its factorization.

3956267217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299577.

The product of its digits is 952560, while the sum is 48.

The square root of 3956267217 is about 62898.8649897596. The cubic root of 3956267217 is about 1581.5947175315.

The spelling of 3956267217 in words is "three billion, nine hundred fifty-six million, two hundred sixty-seven thousand, two hundred seventeen".