3923939412 has 18 divisors (see below), whose sum is σ = 9918846938. Its totient is φ = 1307979792.

The previous prime is 3923939389. The next prime is 3923939441. The reversal of 3923939412 is 2149393293.

It can be written as a sum of positive squares in only one way, i.e., 3566956176 + 356983236 = 59724^2 + 18894^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54499123 + ... + 54499194.

Almost surely, 2^3923939412 is an apocalyptic number.

It is an amenable number.

3923939412 is an abundant number, since it is smaller than the sum of its proper divisors (5994907526).

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

3923939412 is a wasteful number, since it uses less digits than its factorization.

3923939412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108998327 (or 108998322 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 3923939412 is about 62641.3554451051. The cubic root of 3923939412 is about 1577.2750408356.

The spelling of 3923939412 in words is "three billion, nine hundred twenty-three million, nine hundred thirty-nine thousand, four hundred twelve".