3992723447 has 2 divisors, whose sum is σ = 3992723448. Its totient is φ = 3992723446.

The previous prime is 3992723417. The next prime is 3992723453. The reversal of 3992723447 is 7443272993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3992723447 - 2¹⁰ = 3992722423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3992723395 and 3992723404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3992723417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996361723 + 1996361724.

It is an arithmetic number, because the mean of its divisors is an integer number (1996361724).

Almost surely, 2^3992723447 is an apocalyptic number.

3992723447 is a deficient number, since it is larger than the sum of its proper divisors (1).

3992723447 is an equidigital number, since it uses as much as digits as its factorization.

3992723447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 50.

The square root of 3992723447 is about 63188.0008150282. Note that the first 3 decimals coincide. The cubic root of 3992723447 is about 1586.4379003727.

The spelling of 3992723447 in words is "three billion, nine hundred ninety-two million, seven hundred twenty-three thousand, four hundred forty-seven".