3972447199 has 24 divisors (see below), whose sum is σ = 4749700560. Its totient is φ = 3310844544.

The previous prime is 3972447161. The next prime is 3972447209. The reversal of 3972447199 is 9917442793.

It is not a de Polignac number, because 3972447199 - 2⁷ = 3972447071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3952447199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478387 + ... + 486619.

It is an arithmetic number, because the mean of its divisors is an integer number (197904190).

Almost surely, 2^3972447199 is an apocalyptic number.

3972447199 is a deficient number, since it is larger than the sum of its proper divisors (777253361).

3972447199 is a wasteful number, since it uses less digits than its factorization.

3972447199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8519 (or 8512 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 55.

The square root of 3972447199 is about 63027.3527843269. The cubic root of 3972447199 is about 1583.7478723657.

The spelling of 3972447199 in words is "three billion, nine hundred seventy-two million, four hundred forty-seven thousand, one hundred ninety-nine".