8721487941 has 16 divisors (see below), whose sum is σ = 11664113664. Its totient is φ = 5796617904.

The previous prime is 8721487919. The next prime is 8721487991. The reversal of 8721487941 is 1497841278.

It is not a de Polignac number, because 8721487941 - 2⁵ = 8721487909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8721487991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2174560 + ... + 2178566.

It is an arithmetic number, because the mean of its divisors is an integer number (729007104).

Almost surely, 2^8721487941 is an apocalyptic number.

It is an amenable number.

8721487941 is a deficient number, since it is larger than the sum of its proper divisors (2942625723).

8721487941 is a wasteful number, since it uses less digits than its factorization.

8721487941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6040.

The product of its digits is 903168, while the sum is 51.

The square root of 8721487941 is about 93388.9069483094. The cubic root of 8721487941 is about 2058.4019986003.

The spelling of 8721487941 in words is "eight billion, seven hundred twenty-one million, four hundred eighty-seven thousand, nine hundred forty-one".