3923559378 has 32 divisors (see below), whose sum is σ = 8733457920. Its totient is φ = 1305687600.

The previous prime is 3923559377. The next prime is 3923559391. The reversal of 3923559378 is 8739553293.

It is a happy number.

3923559378 is a `hidden beast` number, since 39 + 23 + 559 + 37 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (3923559371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27073 + ... + 92628.

It is an arithmetic number, because the mean of its divisors is an integer number (272920560).

Almost surely, 2^3923559378 is an apocalyptic number.

3923559378 is an abundant number, since it is smaller than the sum of its proper divisors (4809898542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3923559378 is a wasteful number, since it uses less digits than its factorization.

3923559378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120319 (or 120313 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 54.

The square root of 3923559378 is about 62638.3219602824. The cubic root of 3923559378 is about 1577.2241194331.

The spelling of 3923559378 in words is "three billion, nine hundred twenty-three million, five hundred fifty-nine thousand, three hundred seventy-eight".