3927920947 has 8 divisors (see below), whose sum is σ = 3944525760. Its totient is φ = 3911351400.

The previous prime is 3927920891. The next prime is 3927920959. The reversal of 3927920947 is 7490297293.

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 3927920947 - 2¹⁵ = 3927888179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3927920894 and 3927920903.

It is not an unprimeable number, because it can be changed into a prime (3927920987) 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, 227572 + ... + 244222.

It is an arithmetic number, because the mean of its divisors is an integer number (493065720).

Almost surely, 2^3927920947 is an apocalyptic number.

3927920947 is a deficient number, since it is larger than the sum of its proper divisors (16604813).

3927920947 is a wasteful number, since it uses less digits than its factorization.

3927920947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17633.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 3927920947 is about 62673.1277901462. The cubic root of 3927920947 is about 1577.8083359307.

The spelling of 3927920947 in words is "three billion, nine hundred twenty-seven million, nine hundred twenty thousand, nine hundred forty-seven".