3923006978 has 8 divisors (see below), whose sum is σ = 6419466000. Its totient is φ = 1783184980.

The previous prime is 3923006959. The next prime is 3923007017. The reversal of 3923006978 is 8796003293.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89159228 + ... + 89159271.

It is an arithmetic number, because the mean of its divisors is an integer number (802433250).

Almost surely, 2^3923006978 is an apocalyptic number.

3923006978 is a deficient number, since it is larger than the sum of its proper divisors (2496459022).

3923006978 is a wasteful number, since it uses less digits than its factorization.

3923006978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178318512.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 3923006978 is about 62633.9123638305. The cubic root of 3923006978 is about 1577.1500965531.

The spelling of 3923006978 in words is "three billion, nine hundred twenty-three million, six thousand, nine hundred seventy-eight".