3918920979 has 8 divisors (see below), whose sum is σ = 5228025232. Its totient is φ = 2611215360.

The previous prime is 3918920947. The next prime is 3918921029. The reversal of 3918920979 is 9790298193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3918920979 - 2⁵ = 3918920947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3918920909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343102 + ... + 354339.

It is an arithmetic number, because the mean of its divisors is an integer number (653503154).

Almost surely, 2^3918920979 is an apocalyptic number.

3918920979 is a deficient number, since it is larger than the sum of its proper divisors (1309104253).

3918920979 is a wasteful number, since it uses less digits than its factorization.

3918920979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699317.

The product of its (nonzero) digits is 2204496, while the sum is 57.

The square root of 3918920979 is about 62601.2857615560. The cubic root of 3918920979 is about 1576.6023473074.

The spelling of 3918920979 in words is "three billion, nine hundred eighteen million, nine hundred twenty thousand, nine hundred seventy-nine".