3940912847 has 8 divisors (see below), whose sum is σ = 4008977280. Its totient is φ = 3872890840.

The previous prime is 3940912831. The next prime is 3940912903. The reversal of 3940912847 is 7482190493.

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 3940912847 - 2⁴ = 3940912831 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 (3940914847) 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, 219272 + ... + 236562.

It is an arithmetic number, because the mean of its divisors is an integer number (501122160).

Almost surely, 2^3940912847 is an apocalyptic number.

3940912847 is a deficient number, since it is larger than the sum of its proper divisors (68064433).

3940912847 is a wasteful number, since it uses less digits than its factorization.

3940912847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21213.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 3940912847 is about 62776.6903157533. The cubic root of 3940912847 is about 1579.5459955783.

The spelling of 3940912847 in words is "three billion, nine hundred forty million, nine hundred twelve thousand, eight hundred forty-seven".