3972647273 has 16 divisors (see below), whose sum is σ = 4742350080. Its totient is φ = 3255771456.

The previous prime is 3972647219. The next prime is 3972647279. The reversal of 3972647273 is 3727462793.

It is not a de Polignac number, because 3972647273 - 2⁸ = 3972647017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3972647279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74090 + ... + 115907.

It is an arithmetic number, because the mean of its divisors is an integer number (296396880).

Almost surely, 2^3972647273 is an apocalyptic number.

It is an amenable number.

3972647273 is a deficient number, since it is larger than the sum of its proper divisors (769702807).

3972647273 is a wasteful number, since it uses less digits than its factorization.

3972647273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190136.

The product of its digits is 2667168, while the sum is 50.

The square root of 3972647273 is about 63028.9399641149. The cubic root of 3972647273 is about 1583.7744606320.

The spelling of 3972647273 in words is "three billion, nine hundred seventy-two million, six hundred forty-seven thousand, two hundred seventy-three".