3972394611 has 6 divisors (see below), whose sum is σ = 5737903340. Its totient is φ = 2648263068.

The previous prime is 3972394609. The next prime is 3972394631. The reversal of 3972394611 is 1164932793.

3972394611 is a `hidden beast` number, since 3 + 9 + 7 + 23 + 9 + 4 + 611 = 666.

It is not a de Polignac number, because 3972394611 - 2¹ = 3972394609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3972394631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220688581 + ... + 220688598.

Almost surely, 2^3972394611 is an apocalyptic number.

3972394611 is a deficient number, since it is larger than the sum of its proper divisors (1765508729).

3972394611 is a wasteful number, since it uses less digits than its factorization.

3972394611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441377185 (or 441377182 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 3972394611 is about 63026.9355989961. The cubic root of 3972394611 is about 1583.7408836846.

The spelling of 3972394611 in words is "three billion, nine hundred seventy-two million, three hundred ninety-four thousand, six hundred eleven".