3805660978 has 8 divisors (see below), whose sum is σ = 6523990272. Its totient is φ = 1630997556.

The previous prime is 3805660973. The next prime is 3805660979. The reversal of 3805660978 is 8790665083.

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

It is not an unprimeable number, because it can be changed into a prime (3805660973) 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 3 ways as a sum of consecutive naturals, for example, 135916450 + ... + 135916477.

It is an arithmetic number, because the mean of its divisors is an integer number (815498784).

Almost surely, 2^3805660978 is an apocalyptic number.

3805660978 is a deficient number, since it is larger than the sum of its proper divisors (2718329294).

3805660978 is a wasteful number, since it uses less digits than its factorization.

3805660978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271832936.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 3805660978 is about 61690.0395363790. The cubic root of 3805660978 is about 1561.2652700695.

The spelling of 3805660978 in words is "three billion, eight hundred five million, six hundred sixty thousand, nine hundred seventy-eight".