3992394247 has 8 divisors (see below), whose sum is σ = 4230354560. Its totient is φ = 3757217400.

The previous prime is 3992394193. The next prime is 3992394251. The reversal of 3992394247 is 7424932993.

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

It is a cyclic number.

It is not a de Polignac number, because 3992394247 - 2¹¹ = 3992392199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3992394194 and 3992394203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3992394277) 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, 692913 + ... + 698650.

It is an arithmetic number, because the mean of its divisors is an integer number (528794320).

Almost surely, 2^3992394247 is an apocalyptic number.

3992394247 is a deficient number, since it is larger than the sum of its proper divisors (237960313).

3992394247 is a wasteful number, since it uses less digits than its factorization.

3992394247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391733.

The product of its digits is 2939328, while the sum is 52.

The square root of 3992394247 is about 63185.3958363798. The cubic root of 3992394247 is about 1586.3942985791.

The spelling of 3992394247 in words is "three billion, nine hundred ninety-two million, three hundred ninety-four thousand, two hundred forty-seven".