3972461836 has 48 divisors (see below), whose sum is σ = 8366561280. Its totient is φ = 1613494080.

The previous prime is 3972461809. The next prime is 3972461837. The reversal of 3972461836 is 6381642793.

It is a self number, because there is not a number n which added to its sum of digits gives 3972461836.

It is not an unprimeable number, because it can be changed into a prime (3972461837) 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, 41901 + ... + 98491.

It is an arithmetic number, because the mean of its divisors is an integer number (174303360).

Almost surely, 2^3972461836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3972461836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4183280640).

3972461836 is an abundant number, since it is smaller than the sum of its proper divisors (4394099444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3972461836 is a wasteful number, since it uses less digits than its factorization.

3972461836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56734 (or 56732 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The square root of 3972461836 is about 63027.4689004723. The cubic root of 3972461836 is about 1583.7498175385.

The spelling of 3972461836 in words is "three billion, nine hundred seventy-two million, four hundred sixty-one thousand, eight hundred thirty-six".