7987508829 has 12 divisors (see below), whose sum is σ = 11849337916. Its totient is φ = 5181086592.

The previous prime is 7987508827. The next prime is 7987508833. The reversal of 7987508829 is 9288057897.

It can be written as a sum of positive squares in 2 ways, for example, as 5459732100 + 2527776729 = 73890^2 + 50277^2 .

It is not a de Polignac number, because 7987508829 - 2¹ = 7987508827 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 (7987508827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11992924 + ... + 11993589.

Almost surely, 2^7987508829 is an apocalyptic number.

It is an amenable number.

7987508829 is a deficient number, since it is larger than the sum of its proper divisors (3861829087).

7987508829 is a wasteful number, since it uses less digits than its factorization.

7987508829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23986556 (or 23986553 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 63.

The square root of 7987508829 is about 89372.8640527985. The cubic root of 7987508829 is about 1998.9585268443.

The spelling of 7987508829 in words is "seven billion, nine hundred eighty-seven million, five hundred eight thousand, eight hundred twenty-nine".