3972727999 has 4 divisors (see below), whose sum is σ = 4080099064. Its totient is φ = 3865356936.

The previous prime is 3972727991. The next prime is 3972728017. The reversal of 3972727999 is 9997272793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3972727999 - 2³ = 3972727991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3972727999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3972727991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53685477 + ... + 53685550.

It is an arithmetic number, because the mean of its divisors is an integer number (1020024766).

Almost surely, 2^3972727999 is an apocalyptic number.

3972727999 is a deficient number, since it is larger than the sum of its proper divisors (107371065).

3972727999 is a wasteful number, since it uses less digits than its factorization.

3972727999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107371064.

The product of its digits is 27005076, while the sum is 64.

The square root of 3972727999 is about 63029.5803492297. The cubic root of 3972727999 is about 1583.7851882319.

The spelling of 3972727999 in words is "three billion, nine hundred seventy-two million, seven hundred twenty-seven thousand, nine hundred ninety-nine".