3972144479 has 8 divisors (see below), whose sum is σ = 4065409920. Its totient is φ = 3878919576.

The previous prime is 3972144457. The next prime is 3972144521. The reversal of 3972144479 is 9744412793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3972144479 - 2¹² = 3972140383 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 (3972144409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292952 + ... + 306210.

It is an arithmetic number, because the mean of its divisors is an integer number (508176240).

Almost surely, 2^3972144479 is an apocalyptic number.

3972144479 is a deficient number, since it is larger than the sum of its proper divisors (93265441).

3972144479 is a wasteful number, since it uses less digits than its factorization.

3972144479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20269.

The product of its digits is 1524096, while the sum is 50.

The square root of 3972144479 is about 63024.9512415519. The cubic root of 3972144479 is about 1583.7076415533.

The spelling of 3972144479 in words is "three billion, nine hundred seventy-two million, one hundred forty-four thousand, four hundred seventy-nine".